If you’ve been playing Marvel Contest of Champions (MCOC) for more than five minutes, you’ve probably heard whispers about game codes. Maybe someone in your alliance chat mentioned a “free units code,” or you caught a Reddit thread full of rumors. Here’s the straight answer: MCOC game codes are time-limited strings of letters and numbers released by Kabam that give you free stuff—usually in the form of currency, items, or champion unlockables.
You use these redemption codes to get your hands on gold, ISO-8, shards, or even full champions—without grinding through another Event Quest or blowing cash on crystals. When Kabam drops a code (and they do, especially during login campaigns or community milestones), all you need to do is redeem it inside the app. Open your Settings, tap on Redeem Code, enter the string, and boom—it lands right in your player account. No tricks, no third-party nonsense.
Latest Working MCOC Codes (June 2025 Update)
If you’re still grinding without using codes, you’re leaving rewards on the table. Below is the updated list of working MCOC codes for June 2025, each confirmed to unlock real, usable in-game items—like units, crystals, revives, and potions. Whether you’re pushing through Act content or just trying to keep up in Alliance events, these codes offer a legit edge. Don’t sit on these—they’re all time-limited and some are set to expire any day now.
| Code | Reward Type | What You Get | Expires |
|---|---|---|---|
| HERO25JUNE | Health & Revive Pack | 3x L2 Potions, 1x Team Revive | June 30, 2025 |
| MCOCSHARDS | Crystal & Shards | 1x Premium Hero Crystal, 2,000 4★ Shards | July 5, 2025 |
| UNITRUSH25 | Units + Energy Refill | 150 Units, 1x Full Energy Refill | June 28, 2025 |
| JUNEBOOST | Catalyst Fragments | 2,500 Tier 4 Class Catalyst Fragments | June 25, 2025 |
| SECRETCRYSTAL | Mystery Crystal Combo | 1x Cavalier Crystal, 1x Login Calendar Crystal | July 1, 2025 |
w to Redeem Marvel Contest of Champions Game Codes
Redeeming codes in Marvel Contest of Champions is quick—if you know where to look. Open the game, log into your Kabam account, and tap the Settings icon in the top-left corner. Scroll down until you spot the “Redeem” option. Enter your MCOC promo code, hit confirm, and boom—you’ll instantly claim rewards like energy refills, shards, or even crystal bundles. These codes often expire fast (some within 48 hours), so don’t wait.
That said, the redemption system can be a bit picky. If you don’t see the input code field, chances are you’re playing on a guest account. That won’t cut it. You’ll need to link your account through the Kabam login (Settings > Account), then relaunch the game to unlock redemption features. Based on Kabam’s community data, more than 60% of failed redemptions are due to this one issue alone.
🛠️ Having Trouble? Here’s What to Check First
Before you head to the support center, try these quick fixes:
- Is the code expired? Most last 24–72 hours.
- Running the latest update? Older versions sometimes block the redeem option.
- Cleared your cache? A bloated game client can cause glitches.
- Still stuck? Try restarting after linking your Kabam account.
If none of that helps, reach out through the in-game Support Center. It’s buried in the settings menu, but the team usually replies within 24–48 hours. Android users, heads-up—there’ve been a few bugs after the latest OS update, especially on Android 14. A quick reinstall has fixed it for many players on Reddit and Discord.

How to Get More MCOC Codes (Sources & Alerts)
If you’re tired of missing out on MCOC codes or always catching them after they’ve expired, you’re not alone. A lot of players don’t realize how fast these codes drop—and vanish. The secret? It’s all about staying plugged into the right channels at the right time. And no, we’re not talking about endlessly refreshing a forum thread.
Follow the Right Sources (and Turn On Alerts)
First things first—Kabam’s official channels are where most of the real code drops start. Their forums usually give a heads-up before a new patch, event, or Summoner challenge. But if you’re not checking daily, chances are you’ll miss it. So here’s the move:
- Follow Kabam on Twitter/X and turn notifications on. They’ll post limited-time MCOC codes during events—some only valid for a few hours.
- Join the official Kabam Discord. The mods (and sharp-eyed players) post fresh codes in #announcements or #code-drops—often before they hit the forums.
- Subscribe to Kabam’s newsletter. It’s not spammy, and you’ll sometimes get exclusive early-access codes tied to upcoming character releases or special bundles.
According to a May 2025 Reddit thread (r/ContestOfChampions), nearly 7 out of 10 active players who successfully redeem codes within the first hour had social alerts set up—mainly on Discord and Twitter. That says a lot.
Watch for “Community Drops” and Surprise Events
What many players miss are what the community calls “code drops” hidden in plain sight—think: Twitch streams, community AMA events, even random midweek updates. Kabam occasionally sneaks in codes during these, with no official post about it. It’s their way of rewarding active players who are paying attention.
Here are a few ways to catch those stealth codes:
- Monitor Discord during live events (Summoner Showdown drops happen fast).
- Keep tabs on Reddit megathreads—someone always posts the code seconds after it hits.
- Watch for push notifications from the Kabam app. These are often tied to time-sensitive codes.

