Single-player games like Happy Lab
Below are 8 single-player Steam games similar to Happy Lab, 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 Happy Lab page.
Ranked picks
- 1
ROBOT DRAFT: LAST HUMAN
Single-player alternative to Happy Lab — playable solo, no multiplayer required. Shares Indie with Happy Lab.
Fight, solve, and escape through a hostile sci-fi facility that refuses to believe you are human. Uncover a branching story, then build, playtest, export, and share escape rooms of your own.
- 2
Block Motion
Single-player alternative to Happy Lab — playable solo, no multiplayer required. Shares Indie with Happy Lab.
Block motion is a puzzle / design game where you place functional blocks to design a working factory. Build your design, press play and watch your factory in action. You have the freedom to solve the challenges any way you want; The only limit is your imagination.
- 3
Fantastic Contraption
Single-player alternative to Happy Lab — playable solo, no multiplayer required. Shares Indie with Happy Lab.
A surreal building game for VR. Create life-sized contraptions as tall as you can reach, then send them whirling, flinging, and trundling off to solve puzzles on the other side of a floating island. There are no right or wrong solutions, so bring your creativity.
- 4
+ PC Maker
Single-player alternative to Happy Lab — playable solo, no multiplayer required. Shares Indie with Happy Lab.
The game from people who love computers to people who love computers :3
- 5
Linkito
Single-player alternative to Happy Lab — playable solo, no multiplayer required. Shares Indie with Happy Lab.
Unleash your brainpower in Linkito and ignite the insurgency! Link, build, solve, defuse, and decode by using your logic. Craft your own challenges in the level editor or tackle community creations.
- 6
Tower Doomer
Single-player alternative to Happy Lab — playable solo, no multiplayer required. Shares Indie with Happy Lab.
satisfy your demolishing urges with Tower Doomer ! Complete levels in various environments or create your own demolishing derby in the sandbox mode. Tear down multiple structures by shooting at them or use gravity at your own advantage !
- 7
Airport Baggage Simulator
Single-player alternative to Happy Lab — playable solo, no multiplayer required. Shares Indie with Happy Lab.
Inspect and sort baggage at the airport! Check suitcases for illegal contents, weight, and destination airport. Build your own fully automated baggage handling system and optimize your terminal's efficiency for maximum profit!
- 8
The Trench
Single-player alternative to Happy Lab — playable solo, no multiplayer required. Shares Indie with Happy Lab.
As captain of the Pandora sub, you must explore the Trench and retrieve data from the Neptune wreckage. But beware - the trench is home to unimaginable horrors that will test your courage. Can you survive the terrors of the deep and complete your mission, or will you become the next victim?