Single-player games like Monsterium
Below are 9 single-player Steam games similar to Monsterium, ranked by player overlap. Every pick carries Steam's Single-player category, so multiplayer-only titles or always-online games don't sneak in. imho.run pulls the category data from Steam directly — Single-player here matches what the store labels.
Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like Monsterium page.
Ranked picks
- 1

Princess Trouble
Single-player alternative to Monsterium — playable solo, no multiplayer required. Shares Indie and Casual with Monsterium.
Princess Trouble is a 2D pixel platformer featuring unique movement mechanics and key-finding challenges. Explore a mystical castle, solve puzzles, and navigate traps to find your way back to the living world.
- 2

Magic Forest and Nimble Warrior
Single-player alternative to Monsterium — playable solo, no multiplayer required. Shares Indie and Casual with Monsterium.
Magic Forest and Nimble Warrior is an intuitive 2D platformer where you play as a nimble warrior. Jump on platforms that appear and disappear with a timer, avoiding falls and advancing through dynamic challenges.
- 3

Dumb Witchfinder
Single-player alternative to Monsterium — playable solo, no multiplayer required. Shares Indie and Casual with Monsterium.
Dumb Witchfinder is a 2D pixel roguelike platformer where you play as a dark elf battling demons in a forest. Dodge enemy attacks and kill them to upgrade your abilities.
- 4

Oculant
Single-player alternative to Monsterium — playable solo, no multiplayer required. Shares Casual with Monsterium.
Oculant is a classic retro action adventure platformer in a dark-fantasy world. Travel through the kingdom and discover what lies within the kingdom's dark secret.
- 5

Aidan in Danger
Single-player alternative to Monsterium — playable solo, no multiplayer required. Shares Indie with Monsterium.
Aidan in Danger is a retro-style 2D platform game. The player takes on the role of Aidan, the guardian of the last dragon. Face challenging levels, menacing creatures, and an interdimensional villain, all while enjoying beautiful graphics and an exciting soundtrack.
- 6

TitTok
Single-player alternative to Monsterium — playable solo, no multiplayer required. Shares Indie and Casual with Monsterium.
TitTok - Minimalistic adventure 2D puzzle platformer with cats, explosions and spinning saws! TikTok ≠ TitTok
- 7

Jaguar Suns
Single-player alternative to Monsterium — playable solo, no multiplayer required. Shares Indie and Casual with Monsterium.
Race through 15 progressive levels in this SNES/SEGA style 90's retro speed-run platformer.
- 8

Freddy Farmer
Single-player alternative to Monsterium — playable solo, no multiplayer required. Shares Indie and Casual with Monsterium.
Freddy's daughter has been kidnapped by an evil dragon. To rescue her, he must cross the entire kingdom taking some ingredients with which to make a magic potion, but it won't be easy, they must be collected in a specific order and Freddy will have to overcome the dangers he finds in his path.
- 9

Thief Escape
Single-player alternative to Monsterium — playable solo, no multiplayer required. Shares Indie and Casual with Monsterium.
Thief Escape is a 3D stealth action game set on a pirate ship. Collect scattered coins, find the key to the exit, and avoid enemies using bombs for protection.