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

Nazi Zombies
Free-to-play alternative to Descent 3 — no purchase or trial window. Shares Action with Descent 3.
Nazi Zombies is a cooperative survival game where players fend off escalating waves of Nazi zombies, earning points by killing zombies and repairing barriers to buy weapons, upgrades, perks, and unlock new map areas to maximize their survival.
- 4

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
- 5

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.
- 6

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.
- 7

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.
- 8

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.