Free games like X-COM: Interceptor
Below are 8 free-to-play Steam games similar to X-COM: Interceptor, 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 X-COM: Interceptor page.
Ranked picks
- 1
The Lab
Free-to-play alternative to X-COM: Interceptor — 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!
- 2
South Scrimshaw, Part One
Free-to-play alternative to X-COM: Interceptor — no purchase or trial window.
South Scrimshaw is the story of a newborn whale in a vast alien ocean. It is a richly illustrated experimental visual novel, written in the style of a nature documentary.
- 3
The Riftbreaker: Prologue
Free-to-play alternative to X-COM: Interceptor — no purchase or trial window. Shares Strategy with X-COM: Interceptor.
The Riftbreaker: Prologue allows you to experience the events taking place before the story campaign of the main game. Explore an entirely new world. Gather resources. Build up a base. Defend yourself from thousands of alien creatures.
- 4
DCS World Steam Edition
Free-to-play alternative to X-COM: Interceptor — no purchase or trial window.
Feel the excitement of flying the Su-25T "Frogfoot" attack jet and the TF-51D "Mustang" in the free-to-play Digital Combat Simulator World!
- 5
Cell to Singularity - Evolution Never Ends
Free-to-play alternative to X-COM: Interceptor — no purchase or trial window.
The epic story of evolution, technology, humanity, and dinosaurs is yours to tap.
- 6
Moonbase Alpha
Free-to-play alternative to X-COM: Interceptor — no purchase or trial window. Shares Strategy with X-COM: Interceptor.
NASA has once again landed on the lunar surface with the goal of colonization, research, and further exploration. Shortly after the return to the Moon, NASA has established a small outpost on the south pole of the moon called Moonbase Alpha.
- 7
Alien Swarm
Free-to-play alternative to X-COM: Interceptor — no purchase or trial window.
Co-operative multiplayer game and complete code base available for free.
- 8
MechWarrior Online™ Legends
Free-to-play alternative to X-COM: Interceptor — no purchase or trial window. Shares Strategy with X-COM: Interceptor.
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.