Games like Aegis
Games like Aegis include Fallout 4, Fallout: New Vegas, Titanfall® 2, Dome Keeper, and S.T.A.L.K.E.R. 2: Heart of Chornobyl - Standard Edition. We matched them by the tags players give Aegis on Steam (Action, Indie, Mechs, Open World, and Post-apocalyptic): closest matches first, and among equally close ones the better-known games.
Fallout 4
Shared: Open World · Post-apocalyptic · Singleplayer
Fallout: New Vegas
Shared: Open World · Post-apocalyptic · Action
Titanfall® 2
Shared: Mechs · Action · Singleplayer
Dome Keeper
Shared: Action · Post-apocalyptic · Singleplayer
S.T.A.L.K.E.R. 2: Heart of Chornobyl - Standard Edition
Shared: Open World · Post-apocalyptic · Singleplayer
Grand Theft Auto V Legacy
Shared: Action · Open World · Shooter
Metro Exodus
Shared: Post-apocalyptic · Open World · Action
Tom Clancy's Ghost Recon® Wildlands
Shared: Open World · Action · Shooter
RAGE
Shared: Action · Post-apocalyptic · Open World
Fallout 3
Shared: Open World · Post-apocalyptic · Singleplayer
Halo Infinite
Shared: Action · Open World · Singleplayer
Tom Clancy’s The Division™
Shared: Open World · Action · Post-apocalyptic
ZERO Sievert
Shared: Post-apocalyptic · Open World · Action
Bright Memory: Infinite
Shared: Action · Indie · Sci-fi
RAGE 2
Shared: Action · Open World · Post-apocalyptic
STAR WARS Jedi: Survivor™
Shared: Action · Open World · Singleplayer
METAL GEAR SOLID V: THE PHANTOM PAIN
Shared: Action · Open World · Tactical
FTL: Faster Than Light
Shared: Indie · Sci-fi · Roguelike
Red Dead Redemption 2
Shared: Open World · Action · Singleplayer
Arma 3
Shared: Action · Open World · Shooter
Tom Clancy's Ghost Recon® Breakpoint
Shared: Open World · Action · Shooter
Ready or Not
Shared: Tactical · Shooter · Action
RUNNING WITH RIFLES
Shared: Action · Open World · Tactical
Heat Signature
Shared: Indie · Action · Sci-fi