Shroom Siege
Battle for control of a fungus-infested Kingdom in 4v4 strategic multiplayer matches. Possess specialized insects, working together to reach a Shogun, Shrine, or achieve a Poop Victory (yes, you read that right .. Poop Victory). Shroom Siege is for both new and experienced fighters!
Last Updated: 10/1/2025
| Developer | Upside Down Bird |
| Publisher | Upside Down Bird |
| Steam App Id | 2383960 |
Shroom Siege
Battle for control of a fungus-infested Kingdom in 4v4 strategic multiplayer matches. Possess specialized insects, working together to reach a Shogun, Shrine, or achieve a Poop Victory (yes, you read that right .. Poop Victory). Shroom Siege is for both new and experienced fighters!
Last Updated: 10/1/2025
- Windows
- Mac
- Linux
About Shroom Siege
Shroom Siege is an Indie, Action, Sports, and Strategy game developed by Upside Down Bird. It was released on the Steam Store by Upside Down Bird.
It can be played and ran on Windows, Mac, and Linux systems. At the moment, there is no confirmed information regarding Steam Deck support for this game.
According to Steam’s category system, Shroom Siege supports the following features:
- Single-player
- Co-op
- Steam Cloud
- Family Sharing
- Shared/Split Screen
- PvP
- Full controller support
- Shared/Split Screen PvP
- Multi-player
- Remote Play Together
- Shared/Split Screen Co-op
- Online Co-op
- Cross-Platform Multiplayer
- Online PvP
- Remote Play on TV
- LAN Co-op
- LAN PvP
Media & Sceenshots
Watch the featured video for Shroom Siege and see the latest screenshots from the Steam Store.
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Frequently Asked Questions
Soures & References
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Shroom Siege data has been sourced from:
- Valve Corporation. (2025, October 1). Shroom Siege on Steam. Steam Store.
- Valve Corporation. (2025, October 1). Shroom Siege. Steam Community Hub.
- Upside Down Bird. (2023, July 9). Shroom Siege. Shroom Siege.