If you have spent any time playing Murder Mystery 2 on Roblox, you already know that the game runs on three separate currencies: gems, diamonds, and coins. Each one works differently, unlocks different things, and has its own earning method. A lot of newer players get confused because they hear someone mention coins but then see a shop item priced in gems, and suddenly, nothing makes sense.
I started playing MM2 a few years back and remember that exact confusion. I kept grinding coins, thinking I was making progress, only to realize the knife I wanted was locked behind gems I barely had. That experience taught me to understand the full currency system before investing time in grinding.
This guide covers everything you need to know about all three currencies in one place. How to get gems in MM2, how to get diamonds in MM2, how to get coins in MM2, what each currency actually buys, and which earning strategies work fastest at different stages of the game. Whether you just started or have been playing for months, this guide will give you a clearer picture of how the MM2 economy works from the inside.
💎 Want to turn your hard-earned currencies into valuable items? Check the latest MM2 value list to see which weapons are worth collecting.
1. Understanding the Three Currencies in MM2
Before jumping into earning methods, it helps to understand what each currency is and what role it plays. MM2 has three distinct in-game currencies, and each one serves a completely separate purpose. They do not convert into each other, and you cannot use coins to buy something priced in gems. This is important because many players grind the wrong currency for hours before realizing their mistake.
Coins are the most basic currency in MM2. They are earned through normal gameplay and are used primarily to buy items from the Shop, spin the Knife Box, and access certain rotating deals in the game. Coins are easy to earn but also easy to spend without thinking, so managing them wisely matters if you want to build up your inventory.
Gems are a mid-tier currency that holds more value than coins. They unlock specific items in the Gem Shop and are tied to certain limited or premium content in the game. Gems are earned through gameplay milestones, daily rewards, and specific in-game actions, making them slightly harder to accumulate than coins.
Diamonds are the premium currency in MM2. They are tied to Roblox GamePasses or direct purchases, though there are limited ways to earn small amounts for free through gameplay. Diamonds unlock the rarest and most exclusive items in the game, and they are what separates casual players from those with fully upgraded inventories.
Understanding this distinction from the start saves you a huge amount of time and wasted effort.
🎁 Coins are mainly used for opening crates. Learn what rare items you can get in our MM2 item types guide .
2. How to Get Coins in MM2
Coins are the entry point for every player in MM2. They are earned passively through gameplay, which means you accumulate them simply by playing rounds. However, not all rounds are equal when it comes to coin earnings, and knowing how the system works helps you grind more efficiently.
2.1 Playing Rounds
Every round of MM2 you complete gives you coins based on your role and performance. Survivors earn coins by staying alive, but the Murderer earns coins by successfully eliminating players, and the Sheriff earns coins for taking down the Murderer. In general, completing rounds consistently is the most reliable way to build up coins over time.
If you are aiming to maximize coin earnings per hour, try to play rounds where you survive until the end as a survivor, or aim for a good sheriff round where you stop the murderer early. These outcomes tend to reward more coins than dying in the first minute every time.
2.2 Daily Rewards and Login Streaks
MM2 has a daily reward system that gives you coins just for logging in. If you keep a login streak going over multiple consecutive days, the rewards increase. Even if you do not have time to play full rounds every day, logging in to collect your daily reward adds up significantly over a week or two. Missing a day resets your streak, so consistency matters here.
2.3 Special Events and Limited Modes
MM2 regularly runs seasonal events and limited-time game modes. These events often come with bonus coin rewards, special challenges, or event-specific missions that reward coins upon completion. Holiday events like Halloween and Christmas have historically been the most generous in terms of coin earnings, so staying active during those periods accelerates your grinding considerably.
2.4 Can You Buy Coins in MM2?
This is a question a lot of players ask, and the short answer is no. You cannot directly purchase coins with Robux in MM2. Coins are strictly an in-game earned currency. There is no GamePass or direct purchase option that gives you a bag of coins the way you can buy Robux or spend diamonds.
However, some GamePasses do give you indirect coin advantages. The VIP GamePass, for example, gives you bonus coins per round, so while you are not buying coins outright, you are multiplying your earning rate. If you play frequently, that multiplier adds up faster than you might expect.
2.5 Can You Get Coins in MM2 Private Servers?
Yes, you can earn coins in MM2 private servers, but there is an important caveat. Private servers are often used to farm rounds with friends or alts, but the coin rewards in private servers may be reduced compared to public servers. Roblox game developers have the ability to limit how much currency can be earned in private server environments to prevent farming exploits.
From my own testing and community discussions, the consensus is that public servers yield better coin rates per hour than private servers, even if private servers feel more controlled and easier to manage.
🌈 Looking for the rarest rewards? Read our guide on getting free Godlies in MM2 to unlock high-value items without spending Robux.
3. How to Get Gems in MM2
Gems are the currency most players ask about once they have settled into the game. Getting gems in MM2 requires a slightly different approach than grinding coins, because gems are tied to specific gameplay achievements and systems rather than just playing rounds.
3.1 Completing Daily and Weekly Missions
MM2 has a mission system where you are given daily and weekly tasks. These missions might ask you to play a certain number of rounds, achieve a kill as the Murderer, survive a set number of rounds, or use specific items. Completing these missions rewards you with gems, and the weekly missions in particular tend to offer larger gem payouts.
If you are serious about accumulating gems, make it a habit to check your mission board every day and complete as many as possible. Daily missions are usually fast to complete if you know what to focus on, and over a week you can build up a solid gem count purely from mission rewards.
3.2 Opening Boxes and Special Crates
Certain crates and boxes in MM2 have a chance to drop gem rewards when opened. The drop rates are not guaranteed, but if you are already opening boxes regularly for knife cosmetics, the incidental gem drops add a small but steady stream to your balance. The Autumn Box and Holiday-themed crates have historically had better secondary rewards including gems.
3.3 Participating in In-Game Events
Seasonal events in MM2 are one of the best sources of gems outside of regular grinding. Events typically come with event-specific challenge lists, and completing those challenges rewards gems alongside event-exclusive items. The gem rewards during events tend to be larger and faster to earn than during normal gameplay, so active players who participate every event season accumulate significantly more gems over time.
3.4 Level Milestones and Progression Rewards
As you level up your MM2 account, certain level milestones trigger gem rewards. These are one-time bonuses, but for new players they represent a meaningful early boost. If you are just starting out, leveling up quickly through active play will unlock these milestone gems before you even need them, giving you a head start on the Gem Shop.
3.5 Gem Shop: What Can You Buy with Gems?
Knowing how to get gems in MM2 is only useful if you also know where to spend them. The Gem Shop offers a rotating selection of knives, pets, and cosmetic items that cannot be purchased with coins. Some Gem Shop items are available permanently, while others rotate in and out on a seasonal or timed basis.
Items in the Gem Shop are generally of higher visual quality than basic coin shop items, and owning them adds variety to your loadout. Some Gem Shop knives hold trading value in the broader MM2 trading community because of their limited availability windows, making them worth pursuing even if you do not personally love the design.
📈 Many players use coins and gems to grow their collections. Check out our MM2 inventory growth guide for proven progression strategies.
4. How to Get Diamonds in MM2
Diamonds are the premium currency of MM2, and getting them for free is significantly harder than earning coins or gems. That said, there are legitimate ways to accumulate diamonds without spending Robux, though the amounts you can earn free are modest compared to what purchasing a GamePass provides.
4.1 Purchasing Through GamePasses
The most direct way to get diamonds in MM2 is through Roblox GamePasses. NiKilis, the developer of MM2, offers diamond bundles at various price points. Buying a GamePass gives you an immediate diamond credit that you can spend in the Diamond Shop on exclusive and limited items. If you are someone who plans to play MM2 long-term, investing in a diamond bundle is one of the most efficient ways to upgrade your inventory quickly.
4.2 Earning Diamonds Through Events
Some limited events in MM2 offer diamonds as rewards for completing high-tier challenges. These are not common, and the free diamond amounts are typically small, but they exist. Keeping track of the official MM2 Discord or social media announcements helps you stay aware of these opportunities before they expire.
4.3 Game Codes
MM2 occasionally releases official promotional codes that can be redeemed for in-game currency, including small amounts of diamonds. These codes are usually tied to milestones like the game hitting a certain number of visits, developer anniversaries, or collaborations with Roblox events. The codes expire quickly, so following the official MM2 social channels gives you the best chance of catching them before they run out.
4.4 Diamond Shop: What Can You Buy with Diamonds?
The Diamond Shop is where the rarest items in MM2 live. Exclusive knife designs, premium pets, and limited seasonal cosmetics are all priced in diamonds. Some of these items become permanently unavailable after their featured window closes, which means diamonds spent during a limited window have more long-term value than holding onto them for later.
Players who consistently invest in the Diamond Shop tend to have inventories that stand out during trades and gameplay, since diamond items are visually distinct and recognizable to experienced players.
5. Currency Comparison Table
Understanding all three currencies side by side makes it easier to prioritize your time and effort.
| Currency | How You Earn It | What You Buy With It | Ease of Earning | Can You Buy It? |
|---|---|---|---|---|
| Coins | Playing rounds, daily logins, events | Knife boxes, basic shop items | Easy | No (VIP multiplier helps) |
| Gems | Missions, events, level milestones, box drops | Gem Shop knives, pets, cosmetics | Moderate | No |
| Diamonds | GamePass purchases, event rewards, promo codes | Exclusive knives, premium pets, limited items | Hard (free) / Instant (paid) | Yes (via GamePass) |
6. My Real Experience Grinding All Three Currencies
I want to share what the actual grind looks like from a player’s perspective, because a lot of guides skip over the reality of how long things take.
When I first focused on coins, I was able to earn a reasonable amount in a single hour of active playing through public server rounds. The grind felt smooth because coins come in constantly, even in small amounts. Where it fell apart for me was inconsistency. Days when I played casually but skipped my daily login meant I lost streak bonuses, which over a month added up to a noticeable difference.
For gems, the mission system changed everything for me. Before I started doing daily missions, my gem count barely moved. Once I started completing even two or three missions per day, my gem balance grew steadily within a couple of weeks to the point where I could start making Gem Shop purchases. The key realization was that gems do not come from just playing rounds the way coins do. You have to actively engage with the mission system.
Diamonds were the most sobering part of my experience. The free methods give you trickle amounts that feel insignificant compared to what Diamond Shop items actually cost. If you are a free-to-play player, I would recommend being strategic about which diamond items you target and waiting for event opportunities where free diamond rewards are larger. Trying to save up diamonds purely from codes and events for an expensive item will take a long time without a GamePass investment.
💰 Want to know how much your earned items are worth? Use the MM2 inventory value calculator to calculate your collection’s total value.
7. Common Mistakes Players Make with MM2 Currency
Earning coins, gems, and diamonds in MM2 can take a significant amount of time, which is why managing these currencies wisely is extremely important. Unfortunately, many players make simple mistakes that slow down their progress and prevent them from building valuable inventories. New players often focus only on spending currency as quickly as possible rather than thinking about long-term value. This usually leads to wasted coins, missed opportunities, and regret later on.
Some players spend all their coins on random box openings, while others forget to complete daily missions that provide free gems. Many also waste precious diamonds on items that are always available instead of saving for limited-time content. These decisions may not seem important at first, but over time they can significantly reduce a player’s overall progress. Understanding these common mistakes will help you use your currencies more efficiently, earn better rewards, and grow your MM2 inventory much faster.
7.1 Spending Coins on Low-Value Boxes Early
The Knife Box gives you random items, and the chance of landing a valuable knife is low. Many new players dump all their early coins into box spins hoping to get something rare and end up with duplicates of common items. The better approach is to save coins strategically for specific shop rotations or use them for items you actually want rather than gambling on boxes early on.
7.2 Ignoring the Mission Board
This is the single biggest mistake gem grinders make. The mission board refreshes daily and weekly, and leaving those missions unclaimed is essentially leaving free gems on the table. Even players who log in every day often forget to check missions, which means they are earning half as many gems as they could with the same amount of play time.
7.3 Spending Diamonds on Non-Limited Items
If you manage to accumulate diamonds, resist the temptation to spend them on permanent items that will always be available. Save diamonds for limited-time items that have a closing window. Once a limited item is gone from the Diamond Shop, the only way to get it is through player trading, which typically costs much more.
7.4 Trying to Farm Coins Exclusively in Private Servers
As mentioned earlier, private servers have reduced or altered coin earning rates in MM2. Players who set up private server farming sessions with friends expecting to match public server earnings often find the results disappointing. Public servers remain the better environment for active coin grinding.
8. Smart Strategies for Maximizing All Three Currencies
Once you understand how MM2 currencies work and avoid common mistakes, the next step is developing strategies that maximize your earnings. Successful MM2 players do not simply play more hours than everyone else. Instead, they focus on using their time efficiently and taking advantage of every available opportunity. A smart approach allows players to collect more coins, gems, and diamonds without unnecessary grinding.
Building wealth in MM2 requires consistency, planning, and proper resource management. Daily login rewards, seasonal events, mission completion, and strategic spending all play an important role in long-term success. Players who combine these methods often progress much faster than those who rely on random gameplay. By following proven strategies and making informed decisions, you can steadily increase your currency balance, unlock better items, and strengthen your inventory while spending less time grinding for resources.
8.1 Prioritize Daily Logins Without Exception
Your daily login streak compounds over time. A 7-day streak pays out meaningfully more than doing 7 separate single-day logins with breaks in between. Set a reminder on your phone if needed. The time investment is under a minute per day when you are not playing full rounds.
8.2 Stack Event Grinding with Regular Play
During seasonal events, both coin and gem earning rates improve. If you plan to do your heaviest grinding sessions, do them during event windows rather than during off-season periods. You will get more per hour from the same amount of effort.
8.3 Target the Gem Shop on a Schedule
The Gem Shop rotates its offerings. If you know a specific item is coming to the shop, start grinding gems in advance so you have enough ready when it appears. Reacting after an item drops often means scrambling and missing the window if the item has limited availability.
8.4 Use VIP GamePass for Coin Multiplication
If you are a regular player and do not mind a small Robux investment, the VIP GamePass that gives bonus coins per round effectively shortens your coin grind significantly over a long session. It pays for itself in saved grinding time if you play actively for weeks.
🔥 Some weapons obtained through crates become extremely valuable over time. Discover them in our most valuable MM2 items guide .
9. How Currency Ties into MM2 Trading
For players who care about MM2 trading, understanding the currency system connects to understanding item value. Items from the Gem Shop and Diamond Shop that were available only during limited windows hold higher trade value in the player-to-player trading economy. This means that smart spending of your gems and diamonds on limited items is not just about cosmetics. It is also an investment in trade inventory.
If you follow the MM2 value lists and trading communities, you will notice that diamond-exclusive items from past events regularly appear as high-value trade fodder. Players who spent diamonds during limited windows and held those items now have assets that are worth much more in trades than the original diamond cost would suggest.
Coins, by contrast, do not generate tradeable inventory directly. Items bought with coins from the basic shop tend to have low or no trade value because they are available to everyone indefinitely. This reinforces the advice to prioritize gems and diamonds for items with limited availability rather than spending all currencies as soon as you earn them.
Conclusion
MM2 has three currencies that each serve a distinct role in the game. Coins are the grinding foundation that keeps your gameplay loop active. Gems are the mid-level currency that rewards consistent mission engagement and event participation. Diamonds are the premium tier that separates everyday items from the rarest cosmetics in the game.
Getting good at managing all three means playing actively, completing missions daily, participating in every seasonal event, and being strategic about how you spend rather than just how you earn. The players who always seem to have full inventories are not necessarily the ones who play the most hours. They are the ones who play those hours in the most efficient way across all three currency systems.
If you take one thing from this guide, let it be this: check your mission board every single day. That habit alone will make your gem balance grow faster than almost anything else in MM2.
FAQs
How do you get gems fast in MM2?
The fastest way to get gems in MM2 is by completing daily and weekly missions consistently. Missions reward gems directly for gameplay tasks you would often complete anyway. On top of that, participating in seasonal events dramatically speeds up gem earnings because event challenges offer larger gem payouts than standard missions. Combining both methods during event periods gives you the fastest possible gem accumulation rate.
Can you get coins in the MM2 private server?
Yes, you can earn coins in MM2 private servers, but the earning rate is generally lower than in public servers. Private servers have restrictions in place to prevent farming abuse, so if your goal is maximizing coins per hour, public servers will consistently give you better results. Private servers are fine for practice or casual play, but not for serious coin grinding.
Can you buy coins in MM2?
No, you cannot directly purchase coins with Robux or any real money in MM2. Coins are earned exclusively through gameplay. However, the VIP GamePass provides a coin multiplier that increases how many coins you earn per round, which is an indirect way to accelerate your coin income through a paid upgrade.
What is the difference between gems and diamonds in MM2?
Gems are a free in-game currency earned through missions, events, and level milestones. Diamonds are the premium currency that can be purchased through Roblox GamePasses or earned in small amounts from event rewards and promotional codes. Diamonds unlock higher-tier exclusive items in the Diamond Shop, while gems are used in the Gem Shop for a different selection of cosmetics.
What do you spend coins on in MM2?
Coins are used to spin the Knife Box for random knife drops, purchase items from the rotating basic shop, and access certain standard cosmetics in the game. Coins are not used for Gem Shop or Diamond Shop items, so their utility is largely within the basic economy of MM2 rather than the premium sections.
Do you lose your coins when you leave a game in MM2?
No, your coins are saved to your account and persist between sessions. MM2 stores your currency balance server-side, meaning closing the game or leaving a round does not reset your coin count. The only way to lose coins is by spending them in the shop or on boxes.
Is there any way to transfer coins to another player in MM2?
MM2 does not have a direct player-to-player currency transfer system for coins, gems, or diamonds. You cannot send currency directly to another player’s account. Player-to-player interaction in terms of value is done through item trading, where you trade cosmetic items rather than raw currency.
How many coins does the VIP GamePass earn you per round?
The exact bonus varies based on game updates, but the VIP GamePass typically provides a percentage boost on top of your base coin earnings per round. The multiplier means that every round you complete earns you more coins than a standard player would receive. Over many rounds, this difference compounds into a significant total advantage.
Are diamonds the only way to get limited items in MM2?
Not always. Some limited items are also available for gems depending on the event and item tier. However, the most exclusive limited items are typically gated behind diamonds. The Diamond Shop holds the rarest cosmetics in MM2, and while some free players do save enough for limited purchases through event codes and rewards, the pace is much slower than a GamePass purchase allows.
What happens to gems and diamonds if I do not spend them?
Nothing. Your gem and diamond balances carry over indefinitely. There is no expiry on unspent currency in MM2. This means you can save patiently for a specific item without worrying about your balance disappearing. The only risk is missing a limited-time item window if you do not have enough saved when it appears.
Do events in MM2 give all three currencies?
Most events reward primarily coins and gems through challenges and missions. Free diamond rewards from events are rare and typically small in amount. Some major anniversary or milestone events have offered slightly larger diamond rewards, but these are exceptions rather than the rule. Events remain the best opportunity to accelerate gem earnings specifically.
Is grinding coins in MM2 worth it long-term?
Coins are worth grinding if you actively use the basic shop and box spinning features. However, for long-term inventory building and trading value, gems and diamonds tend to generate more meaningful returns because the items they unlock have greater trade value and exclusivity. Many experienced players focus less on coin grinding over time and shift their energy toward gem missions and event participation instead.
What is the best time to spend diamonds in MM2?
The best time to spend diamonds is during limited-time events when exclusive items are available for a defined window. Spending diamonds on permanent items that will always be in the shop is less efficient because you can buy those whenever you accumulate enough. Diamonds spent on items that disappear after an event ends represent the best long-term value because those items gain scarcity and trading value over time.
