Games like LuPR: Lunar Post Recruit
Games like LuPR: Lunar Post Recruit include DOOM + DOOM II, Quake, Warhammer 40,000: Boltgun, Counter-Strike, and Wolfenstein 3D. We matched them by the tags players give LuPR: Lunar Post Recruit on Steam (Retro, Old School, 1990's, Action, and Arena Shooter): closest matches first, and among equally close ones the better-known games.

DOOM + DOOM II
Shared: 1990's · Retro · FPS

Quake
Shared: Action · FPS · 1990's

Warhammer 40,000: Boltgun
Shared: Retro · FPS · Old School

Counter-Strike
Shared: Action · FPS · 1990's

Wolfenstein 3D
Shared: Retro · FPS · Action

DUSK
Shared: Retro · FPS · Old School

Half-Life
Shared: 1990's · FPS · Action

Quake II
Shared: Action · FPS · 1990's

DOOM 64
Shared: Action · Retro · 1990's

Pixel Gun 3D: PC Edition
Shared: Action · FPS · PvP

WRATH: Aeon of Ruin
Shared: Retro · Action · FPS

THE FINALS
Shared: FPS · Action · PvP

Slayers X: Terminal Aftermath: Vengance of the Slayer
Shared: Retro · 1990's · Action

Deathmatch Classic
Shared: Action · FPS · Old School

Duke Nukem 3D: 20th Anniversary World Tour
Shared: FPS · Action · 1990's

Quake III Arena
Shared: Action · Arena Shooter · FPS

Team Fortress Classic
Shared: Action · FPS · 1990's

CULTIC
Shared: Old School · FPS · Action

ULTRAKILL
Shared: FPS · Arena Shooter · Retro

Project Warlock II
Shared: Retro · Old School · Action

Battlefield™ 2042
Shared: FPS · Action · Singleplayer

Murder Miners
Shared: Arena Shooter · Split Screen · FPS

Ion Fury
Shared: Retro · FPS · Old School

Warhammer 40,000: Boltgun 2
Shared: Retro · Action · FPS