About 42 Space Mayhem

42 Space Mayhem is an Adventure, Indie, and Action game developed by Mostly Harmless Games. On 12/31/2026, it was released on the Steam Store by Mostly Harmless Games.

It can be played and ran on both Windows and Mac systems. At the moment, there is no confirmed information regarding Steam Deck support for this game.

According to Steam’s category system, 42 Space Mayhem supports the following features:

• Single-player
• Multi-player
• Co-op
• Online Co-op
• Family Sharing

Media & Sceenshots

Watch the featured video for 42 Space Mayhem and see the latest screenshots from the Steam Store.

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Soures & References

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42 Space Mayhem data has been sourced from:

• Valve Corporation. (2025, September 13). 42 Space Mayhem on Steam. Steam Store.
• Valve Corporation. (2025, September 13). 42 Space Mayhem. Steam Community Hub.