Game
Early Access App 3583970
Mycelium: The Silent Contract
Po Kolu · published by Proteus Interactive · released Apr 27, 2026
Mycelium: The Silent Contract is a co-op/single player extraction horror set in a haunted liminal forest. Your contract is simple: get mycelium and extract. But in this forest, nothing is what it seems. So what did you sign, exactly?
Price
$9.99
US store
Reviews
99%
101 · Very Positive
Playing now
0
sampled 9h ago
24h peak
0
all-time seen 3
Followers
—
Steam community hub
Owners (est.)
~3K
1.5K – 4.8K
YouTube activity
2
videos · 30 d15
creators1.4K
views · 1 yTwitch activity
2
avg viewers · 30 d186
hours watched · 30 d9
streamers · 30 dProduct info
from Steam's PICS · read 1h ago- Change number
- 40,922,015 · seen 1h ago
- Public build
- 26,326,963 · Nov 13, 2026 (1h ago)
- Operating systems
- windows
- Architecture
- —
- Install size
- 14 GB · 13 GB download
- Install folder
Mycelium The Silent Contract- Controller support
- Full
- Metacritic
- —
- Homepage
- —
- Release state
- released
- Community
- hub · stats
Steam Deck
PlayableTested May 15, 2026 on build 23,126,592
- !Default controller config not fully functional
- !Controller glyphs do not match deck device
- !Text input does not automatically invokes keyboard
- !Interface text is not legible
- ✓Default configuration is performant
Branches · 2
every build Steam serves for this app| Branch | Build | Updated | Description |
|---|---|---|---|
| public | 26,326,963 | Nov 13, 2026 · 1h ago | |
| openbeta | 26,326,963 | Nov 6, 2026 · 7d ago | Public testing branch |
Build history
every build id we have seen on a branch (history starts with our first read)| Build | Branch | Released | First seen |
|---|---|---|---|
| 26,326,963 | public | Nov 13, 2026 16:58 | 1h ago |
| 26,304,673 | openbeta | Nov 9, 2026 01:37 | 3d ago |
| 26,304,673 | public | Nov 9, 2026 01:37 | 3d ago |
| 26,326,963 | openbeta | Nov 6, 2026 17:00 | 1h ago |
Depots · 3
content of the public branchLaunch options · 1
| Executable | OS | Description |
|---|---|---|
M.exe |
all |
Languages · 6
| Language | Interface | Full audio | Subtitles |
|---|---|---|---|
| French | ✓ | — | ✓ |
| German | ✓ | — | ✓ |
| English | ✓ | ✓ | ✓ |
| Italian | ✓ | — | ✓ |
| Spanish | ✓ | — | ✓ |
| Ukrainian | ✓ | — | ✓ |
Packages · 1
all packages| Sub | Name | Billing | Price |
|---|---|---|---|
| 1264326 | Mycelium: The Silent Contract | Store or CD key | $9.99 |
Bundles · 8
all bundles| Bundle | Games | Bundle discount | Price |
|---|---|---|---|
| Co-op Horror: Mycelium x Dreadway | 2 | -10% | $15.28 |
| Expendable Operatives | 2 | -10% | $19.78 |
| Lore and Liminal Spaces | 2 | -10% | $25.63 |
| Mycelium x MAZEBOUND | 2 | -10% | $17.98 |
| Mycelium x Panic Delivery | 2 | -10% | $16.18 |
| Mycelium x SWAT | 2 | -10% | $26.98 |
| Mycelium x Asian Parents | 2 | -10% | $13.48 |
| Mushroom Bundle | 2 | -10% | $12.58 |
Change numbers
all changes#40,922,015 · 1h ago#40,921,974 · 1h ago
Updates · patch notes
Steam announcements tagged as patch notes, linked to the public build they followed
| When | Note | Build | Update size |
|---|---|---|---|
| Oct 5, 2026 | v. 0.62.03 This patch should greatly decrease the risk of random disconnects at the start of missions as well as failed loadings into missions. It should also optimize the load of CPU during the initial loading. Patchnotes: - Changed some engine network settings, so that players get disconnected less frequently - Changed some spawn algorithms to decrease the initial load on CPU - Added a 'Player disconnected |
— | — |
| Oct 1, 2026 | v. 0.62.01 A small patch to fix some annoying issues - Fixed Terminal showing more than 20 equipment crates on the table - Fixed teleporter resetting TP point when player aims their knife - Adjusted picking up loot algorithm, hopefully fixing unable to pick up things bug - Attempted to fix phone objective not working sometimes - Added backpack spawn point to the new location |
— | — |
| Aug 31, 2026 | v. 0.60.07 Changes: - Locations spawn chances are back to intended - Also made some changes to the algorithm so you should get a tiny bit more locations per mission - Fixed being unable to claim a room if your save file is broken for whatever reason - Fixed visual bug with compass icon on the safe in the lobby |
— | — |
| Aug 23, 2026 | v. 0.60.06 With this small update, the new location will be even more useful. Have fun! Changes: - Decreased the chances of Eggs to spawn - Fixed 'new outfit' message every time you kill a shroomster after getting the achievement - Fixed 'you already have this outfit' message every time you get praised by the Manager |
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| Aug 22, 2026 | v. 0.60.05 Thanks to your feedback, I made some changes to the new location, so that it would be more intuitive and visually correct. I also fixed some bugs. Other changes: - Increased Shroomster hitbox - Fixed microphone button hint Have fun! |
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| Aug 20, 2026 | v. 0.60.04 Since the new location isn't guaranteed to spawn, I've decided to increase its spawn chance for a limited period of time (1 week) for returning players to find it faster.Changes:Increased new location spawn chance to 99%Fixed failed missions caused by failed map generationFixed the easter egg you probably haven't found anywayThank you for your bug reports and feedback! |
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| Aug 3, 2026 | v. 0.59.01 Changes: - Fixed cactus counting as friendly damage dealt - Fixed objective buttons working for clients - Fixed buttons appearing on mission screen for clients - Fixed invitation window bug that would appear if you played with controller |
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| Jun 19, 2026 | v. 0.57.07 Changes:Added a new pinFixed the issue that caused players to not load into the lobby after long missionsFixed some localizations |
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| May 23, 2026 | New Creature Update (BETA branch) - v. 0.55.03 IMPORTANT: This update is only available on the openbeta branch of the game. If you want to play it, you need to switch the version in game properties in your Steam Library! If you play in co-op, make sure all players have the same version, or your mission won't start.UPDATE 0.55.03 (beta):NEW Added a new creatureAdded new valuable itemsTwo new pins CHANGES Removed gun from valuables listReworked |
— | — |
| May 7, 2026 | v. 0.54.15 Changelog: - Fixed that you sometimes couldn't pick up dropped equipment |
— | — |
| May 6, 2026 | v. 0.54.14 Changelog: - Clients can now also buy equipment in the Terminal - Improved Flare gun precision - Balanced bzulkers a tiny bit - Fixed players volume reset in between rounds Known issues: - Crates in the lobby are sometimes invisible for clients (shows them weird black screen when they step into it) - Some players may experience weird highlights across the map |
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