Single-player games like Undefined 339
Below are 8 single-player Steam games similar to Undefined 339, 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 Undefined 339 page.
Ranked picks
- 1
SurvivalEXtreme
Single-player alternative to Undefined 339 — playable solo, no multiplayer required. Shares Action and Indie with Undefined 339.
Enter a world devastated by the 2050 apocalypse. Fifty years later, humanity has returned… The war to reclaim Earth has begun, and only the bravest will be able to face the demons that now rule it. The world has fallen. Now it's your turn to rise.
- 2
Maseylia : Echoes of the Past
Single-player alternative to Undefined 339 — playable solo, no multiplayer required. Shares Indie and Adventure with Undefined 339.
Explore a fully interconnected 3D world where every new ability dramatically expands your freedom. A true non-linear Metroidvania with breathtaking movement, atmospheric sci-fi beauty, and deep environmental storytelling.
- 3
Lucent Bounds
Single-player alternative to Undefined 339 — playable solo, no multiplayer required. Shares Indie and Adventure with Undefined 339.
Lucent Bounds is a short and challenging 3D platformer. Make your way through an alien ocean planet by jumping, dashing, slamming, gliding, and swinging about. Avoid hazards, collect treasures, and challenge yourself in speed runs.
- 4
Omega
Single-player alternative to Undefined 339 — playable solo, no multiplayer required. Shares Indie and Adventure with Undefined 339.
A difficult precision platformer set in a surreal world. Overcome challenging environments with extreme jumps and overwhelming obstacles as you face a constant challenge on your way to the summit. Are you ready for the challenge?
- 5
Tomb Raider IV-VI Remastered
Single-player alternative to Undefined 339 — playable solo, no multiplayer required. Shares Action and Adventure with Undefined 339.
Her legacy lives on! Play the next series of Tomb Raider adventures in this remastered collection of Lara Croft's darkest adventures.
- 6
Star Wars Outlaws
Single-player alternative to Undefined 339 — playable solo, no multiplayer required. Shares Action and Adventure with Undefined 339.
Experience the first-ever open world Star Wars™ game and explore distinct locations across the galaxy, both iconic and new. Risk it all as scoundrel Kay Vess, seeking freedom and the means to start a new life.
- 7
PRAGMATA
Single-player alternative to Undefined 339 — playable solo, no multiplayer required. Shares Action and Adventure with Undefined 339.
Pragmata is a unique, sci-fi action-adventure game from Capcom. Follow Hugh, a member of an ill-fated investigation team, and Diana, a young android, as they navigate a lunar facility taken over by rogue AI in search of a way to Earth.
- 8
Almost There: The Platformer
Single-player alternative to Undefined 339 — playable solo, no multiplayer required. Shares Action and Indie with Undefined 339.
Sprint between saw blades while dodging homing missiles. Duck under lasers while the floor crumbles beneath you. Almost There was designed specifically for fans of the hardcore platforming genre - you've been warned.