Games like A.I. Invasion
Games like A.I. Invasion include Police Stories, KovaaK's, SYNTHETIK: Legion Rising, Door Kickers, and The Ascent. We matched them by the tags players give A.I. Invasion on Steam (Action, Indie, Top-Down Shooter, Strategy, and Simulation): closest matches first, and among equally close ones the better-known games.

Police Stories
Shared: Action · Strategy · Top-Down Shooter

KovaaK's
Shared: Action · Indie · Simulation

SYNTHETIK: Legion Rising
Shared: Top-Down Shooter · Indie · Action

Door Kickers
Shared: Strategy · Action · Indie

The Ascent
Shared: Top-Down Shooter · Action · Indie

Arma 3
Shared: Action · Simulation · Shooter

X-Morph: Defense
Shared: Action · Indie · Strategy

RUINER
Shared: Action · Top-Down Shooter · Indie

Freeman: Guerrilla Warfare
Shared: Action · Strategy · Shooter

Aimlabs
Shared: Action · Simulation · Shooter

Arma Reforger
Shared: Simulation · Action · Shooter

Halo: Spartan Assault
Shared: Action · Top-Down Shooter · Strategy

Hell Let Loose: Vietnam
Shared: Action · Strategy · Simulation

Total Tank Simulator
Shared: Action · Strategy · Simulation

Ancient Warfare 3
Shared: Action · Indie · Simulation

HELLDIVERS™ Dive Harder Edition
Shared: Top-Down Shooter · Action · Twin Stick Shooter

Totally Accurate Battle Simulator
Shared: Simulation · Strategy · Indie

Mount & Blade II: Bannerlord
Shared: Strategy · Action · Simulation

Call to Arms
Shared: Action · Strategy · Shooter

Mech Havoc
Shared: Top-Down Shooter · Strategy · Simulation

Relic Hunters Zero: Remix
Shared: Action · Top-Down Shooter · Twin Stick Shooter

Arma 2: Operation Arrowhead
Shared: Action · Simulation · Strategy

Plague Inc: Evolved
Shared: Strategy · Indie · Simulation

12 is Better Than 6
Shared: Action · Top-Down Shooter · Indie