Gunnheim is a Action game from SIEIDI Ltd with a 38% positive Steam review signal. Indie Lantern indexes it for players browsing by single-player, co-op.

Game snapshot
- Developer
- SIEIDI Ltd
- Release year
- 2015
- Playtime
- Varies by player
- Price
- $4.99
- Review signal
- 38% positive
Screenshots






System requirements
PC
- Minimum
- OS *: Windows 7 or later
Processor: AMD A6-4400M APU
Memory: 2 GB RAM
Graphics: Intel HD Graphics 4600
Network: Broadband Internet connection
Storage: 1 GB available space
Additional Notes: Can be played with a controller or mouse+keyboard
macOS
- Minimum
- OS: OS X
Processor: 2,4 GHz Intel Core i5
Memory: 2 GB RAM
Graphics: Intel Iris 1536 MB
Network: Broadband Internet connection
Storage: 1 GB available space
Additional Notes: Two-button mouse highly recommended.
Linux
- Minimum
- Processor: AMD A6-4400M APU
Memory: 2 GB RAM
Graphics: Intel HD Graphics 4600
Network: Broadband Internet connection
Storage: 1 GB available space
Additional Notes: Can be played with a controller or mouse+keyboard
From Steam reviews
Review notes
Gunnheim is worth a closer look if you want great with friends, solo-friendly, controller friendly, and boss rush.
Best for players who want chaotic fun, great with friends, solo-friendly, and controller friendly.
Check more carefully if you dislike technical roughness.
great-with-friends
FitIt tends to be better when shared with friends.
solo-friendly
FitIt still makes sense as a solo play choice.
controller-friendly
FitController, gamepad, or Steam Deck play comes up as a plus.
boss-rush
Play styleA major part of the game is learning and beating standout fights.
deckbuilding
Play styleCard choices, deck shape, and synergies matter.
chaotic-fun
ToneThe appeal is messy, funny, and unpredictable rather than polished calm.
buggy
FrictionTechnical roughness or instability comes up often enough to check.
Steam review snapshots
[h1]Multiplayer Co-Op Twin-Stick Action Shooter[/h1] + Surprisingly fun and challenging gameplay where you mainly mow down hoards of enemies and challenging bosses…This is a very fun co-operative game!+ The end bosses of each area are surprisingly complex and require you to learn their mechanics to defeat them and quite…The background music gets a bit repetitive after a while, doesn't seem like there's enough songs [Side Note: From reading other…Why it fits
Check it if you want action filtered by single-player, co-op.
Who might skip it
Research further on Steam if you need verified accessibility details, exact playtime, or current system requirements.