Single-player games like YogLabs: Testing Initiative
Below are 10 single-player Steam games similar to YogLabs: Testing Initiative, 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 YogLabs: Testing Initiative page.
Ranked picks
- 1

Alien Life Lab
Single-player alternative to YogLabs: Testing Initiative — playable solo, no multiplayer required. Shares Indie and Adventure with YogLabs: Testing Initiative.
Giedi Satellite takes a job as a wildlife handler on a colossal nature preserve space station that goes awry in comedic and horrific fashion. Become an Alien Wildlife Control Specialist in this horromedy adventure.
- 2

Dofamine
Single-player alternative to YogLabs: Testing Initiative — playable solo, no multiplayer required. Shares Indie and Adventure with YogLabs: Testing Initiative.
You must explore the labyrinth of riddles and investigate the apocalyptic event at the research facility following the experiments with the Higgs boson, or “the God particle”.
- 3

Humanity Lost
Single-player alternative to YogLabs: Testing Initiative — playable solo, no multiplayer required. Shares Adventure with YogLabs: Testing Initiative.
Will you save humanity? You are on a mission to find a new planet for humans to inhabit. In this story driven FPS space opera you will explore open world planets, find weapons, upgrade your character, and befriend alien species.
- 4

Doctor Who: The Edge of Reality
Single-player alternative to YogLabs: Testing Initiative — playable solo, no multiplayer required. Shares Indie and Adventure with YogLabs: Testing Initiative.
Experience an unforgettable adventure in space and time. Explore new worlds, face Daleks, Cybermen and Weeping Angels and join two Doctors on an epic quest to save the universe from an unstoppable new threat in this first-person narrative adventure.
- 5

Moon Mystery
Single-player alternative to YogLabs: Testing Initiative — playable solo, no multiplayer required. Shares Adventure with YogLabs: Testing Initiative.
The Moon's haunted - and when an astronaut loses contact with Earth, the adventure begins in full. Fill up your oxygen, load up the guns, and set out on an interstellar FPS adventure across the stars, filled with puzzles, fights, exploration, and strange secrets of the universe.
- 6

Portal
Single-player alternative to YogLabs: Testing Initiative — playable solo, no multiplayer required.
Portal™ is a new single player game from Valve. Set in the mysterious Aperture Science Laboratories, Portal has been called one of the most innovative new games on the horizon and will offer gamers hours of unique gameplay.
- 7

Outer Wilds
Single-player alternative to YogLabs: Testing Initiative — playable solo, no multiplayer required. Shares Adventure with YogLabs: Testing Initiative.
Named Game of the Year 2019 by Giant Bomb, Polygon, Eurogamer, and The Guardian, Outer Wilds is a critically-acclaimed and award-winning open world mystery about a solar system trapped in an endless time loop.
- 8

Q.U.B.E: Director's Cut
Single-player alternative to YogLabs: Testing Initiative — playable solo, no multiplayer required. Shares Indie and Adventure with YogLabs: Testing Initiative.
Q.U.B.E: Director's Cut is the definitive version of the brain-twisting first-person puzzler. Using special high-tech gloves to manipulate cubes in the environment, the player solves an array of conundrums - from physics-based challenges; to 3D jigsaws; to platform-based trials.
- 9

Hearthlands
Single-player alternative to YogLabs: Testing Initiative — playable solo, no multiplayer required. Shares Indie with YogLabs: Testing Initiative.
Hearthlands is a medieval/fantasy city-building real time strategy game in which you take a role of a king in a procedurally generated world. You can not control your subjects directly; instead you focus on city-building, resource management, diplomacy, magic, etc.
- 10

Elsewhere
Single-player alternative to YogLabs: Testing Initiative — playable solo, no multiplayer required. Shares Indie and Adventure with YogLabs: Testing Initiative.
A sandbox crafting adventure with quests, magic, automation, and exploration. Gather resources, build your base, unlock new technologies, and shape your own path through a world full of secrets and progression. Inspired by classic Minecraft modpacks with many new and unique features.