Free games like Descent 3
Below are 8 free-to-play Steam games similar to Descent 3, ranked by player overlap and content similarity. No purchase or Steam login required to view the list. Every pick is a full free-to-play title — not a demo, trial, or time-limited giveaway. imho.run's catalogue refreshes daily, so newly free or newly popular titles surface here without manual editing.
Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like Descent 3 page.
Ranked picks
- 1

STRAFTAT
Free-to-play alternative to Descent 3 — no purchase or trial window. Shares Action with Descent 3.
STRAFTAT is a 1v1/2v2 ONLINE first person SHOOTER with quick rounds in over 350 MAPS ; Including all WEAPONS, proximity chat and 4 players FFA.
- 2

The Lab
Free-to-play alternative to Descent 3 — no purchase or trial window.
Welcome to The Lab, a compilation of Valve’s room-scale VR experiments set in a pocket universe within Aperture Science. Fix a robot, defend a castle, adopt a mechanical dog, and more. Still not sold? It’s free!
- 3

Warframe
Free-to-play alternative to Descent 3 — no purchase or trial window. Shares Action with Descent 3.
Awaken as an unstoppable warrior and battle alongside your friends in this story-driven free-to-play online action game
- 4

SCP: Secret Laboratory
Free-to-play alternative to Descent 3 — no purchase or trial window. Shares Action with Descent 3.
Deep within a secure underground facility, a sudden containment breach allows many of the secured anomalies to escape from their chambers. Assist the Foundation in re-securing the facility, help the Insurgency in their goal to capture it, or wreak havoc as an SCP in a frantic bid to escape.
- 5

Splitgate
Free-to-play alternative to Descent 3 — no purchase or trial window. Shares Action with Descent 3.
Splitgate is a free-to-play, fast-paced multiplayer shooter that features player-controlled portals. This sci-fi shooter takes the FPS genre to a new dimension with its portal mechanics, delivering high-flying, multi-dimensional combat.
- 6

PlanetSide 2
Free-to-play alternative to Descent 3 — no purchase or trial window. Shares Action with Descent 3.
PlanetSide 2 is an all-out planetary war, where thousands of players battle as one across enormous continents. Utilize infantry, ground and air vehicles, and teamwork to destroy your enemies in this revolutionary first-person shooter on a massive scale.
- 7

Sven Co-op
Free-to-play alternative to Descent 3 — no purchase or trial window. Shares Action with Descent 3.
Sven Co-op is a co-operative game originally based around Valve Software's Half-Life. In this game players must work together against computer controlled enemies and solve puzzles as a team.
- 8

MechWarrior Online™ Legends
Free-to-play alternative to Descent 3 — no purchase or trial window. Shares Action with Descent 3.
MechWarrior Online™ Legends is a tactical, 'Mech-based online shooter set in the vast BattleTech Universe. Assume the role of an elite MechWarrior, piloting powerful BattleMechs, fighting for supremacy over the Inner Sphere.