Games like Rogue Invader
Games like Rogue Invader include Half-Life 2, Black Mesa, Skul: The Hero Slayer, STAR WARS™ Battlefront™ II, and Vampire Survivors. We matched them by the tags players give Rogue Invader on Steam (Action, Singleplayer, Roguelite, Sci-fi, and Shooter): closest matches first, and among equally close ones the better-known games.

Half-Life 2
Shared: Action · Sci-fi · Singleplayer

Black Mesa
Shared: Action · Sci-fi · Singleplayer

Skul: The Hero Slayer
Shared: Action · Pixel Graphics · Roguelite

STAR WARS™ Battlefront™ II
Shared: Singleplayer · Shooter · Action

Vampire Survivors
Shared: Roguelite · Pixel Graphics · Singleplayer

Half-Life
Shared: Singleplayer · Sci-fi · Action

Half-Life: Blue Shift
Shared: Action · Singleplayer · Sci-fi

Half-Life: Opposing Force
Shared: Action · Singleplayer · Sci-fi

Halo Infinite
Shared: Singleplayer · Action · Shooter

Hades
Shared: Roguelite · Action · Singleplayer

Crysis Remastered
Shared: Action · Sci-fi · Shooter

BioShock Infinite
Shared: Action · Singleplayer · Shooter

Titanfall® 2
Shared: Singleplayer · Action · Shooter

Crysis 2 - Maximum Edition
Shared: Action · Sci-fi · Singleplayer

Bright Memory: Infinite
Shared: Action · Singleplayer · Shooter

Halo: Campaign Evolved
Shared: Action · Singleplayer · Sci-fi

Alien Shooter
Shared: Action · Shooter · Singleplayer

Aliens vs. Predator™
Shared: Action · Sci-fi · Aliens

Dome Keeper
Shared: Singleplayer · Action · Sci-fi

EVERSPACE™
Shared: Action · Sci-fi · Roguelite

STAR WARS™ Battlefront II (Classic, 2005)
Shared: Action · Shooter · Sci-fi

Megabonk
Shared: Roguelite · Action · Singleplayer

Broforce
Shared: Action · Pixel Graphics · Shooter

Dead Space (2008)
Shared: Action · Sci-fi · Singleplayer