Games like Solomon Snow: First Contact
Games like Solomon Snow: First Contact include Alien Shooter, Half-Life, Black Mesa, Half-Life: Blue Shift, and Half-Life 2. We matched them by the tags players give Solomon Snow: First Contact on Steam (Singleplayer, Aliens, Isometric, Shooter, and Sci-fi): closest matches first, and among equally close ones the better-known games.

Alien Shooter
Shared: Aliens · Shooter · Singleplayer

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

Black Mesa
Shared: Singleplayer · Sci-fi · Shooter

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

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

Shadowgrounds
Shared: Aliens · Sci-fi · Singleplayer

Halo: Spartan Assault
Shared: Singleplayer · Sci-fi · Top-Down Shooter

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

STAR WARS™ Battlefront™ II
Shared: Singleplayer · Shooter · Sci-fi

Halo: Spartan Strike
Shared: Singleplayer · Aliens · Sci-fi

Crysis Remastered
Shared: Shooter · Singleplayer · Sci-fi

Halo Infinite
Shared: Singleplayer · Shooter · Action

Shadowgrounds Survivor
Shared: Shooter · Sci-fi · Singleplayer

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

Alien Breed: Impact
Shared: Shooter · Aliens · Sci-fi

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

Fallout 4
Shared: Singleplayer · Shooter · Exploration

Titanfall® 2
Shared: Singleplayer · Shooter · Sci-fi

Duke Nukem Forever
Shared: Aliens · Singleplayer · Shooter

Wolcen: Lords of Mayhem
Shared: Singleplayer · Isometric · Action

BioShock Infinite
Shared: Shooter · Singleplayer · Action

Marvel's Guardians of the Galaxy
Shared: Singleplayer · Sci-fi · Action

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

Alien Shooter 2: Reloaded
Shared: Aliens · Shooter · Isometric