Games like Alien Outpost
Games like Alien Outpost include Escape From Duckov, Cyberhunt, SNKRX, Chicken Invaders Universe, and BALL x PIT. We matched them by the tags players give Alien Outpost on Steam (Action, Adventure, Casual, Shooter, and Arena Shooter): closest matches first, and among equally close ones the better-known games.
Escape From Duckov
Shared: Action · Adventure · Shooter
Cyberhunt
Shared: Action · Casual · Adventure
SNKRX
Shared: Arena Shooter · Roguelite · Shoot 'Em Up
Chicken Invaders Universe
Shared: Action · Shooter · Shoot 'Em Up
BALL x PIT
Shared: Action · Roguelite · Shoot 'Em Up
Nova Drift
Shared: Shoot 'Em Up · Roguelite · Arena Shooter
Juicy Realm
Shared: Action · Adventure · Casual
Greedland
Shared: Roguelite · Shoot 'Em Up · Twin Stick Shooter
Planes, Bullets and Vodka
Shared: Action · Casual · Shoot 'Em Up
SYNTHETIK: Legion Rising
Shared: Action · Roguelite · Top-Down Shooter
Relic Hunters Zero: Remix
Shared: Action · Adventure · Twin Stick Shooter
Vampire Survivors
Shared: Roguelite · Casual · Action
20 Minutes Till Dawn
Shared: Roguelite · Shoot 'Em Up · Top-Down Shooter
Time Wasters
Shared: Arena Shooter · Roguelite · Twin Stick Shooter
Broforce
Shared: Action · Shooter · 2D
The Ascent
Shared: Action · Top-Down Shooter · Shooter
Blazing Beaks
Shared: Action · Roguelite · Shooter
Dead Cells
Shared: Adventure · Roguelite · Action
Skul: The Hero Slayer
Shared: Action · Roguelite · Indie
Minishoot' Adventures
Shared: Adventure · Twin Stick Shooter · Casual
Insect Swarm
Shared: Shooter · Shoot 'Em Up · Top-Down Shooter
Halo: Spartan Assault
Shared: Action · Shooter · Top-Down Shooter
Chippy
Shared: Arena Shooter · Shoot 'Em Up · Twin Stick Shooter
State of Anarchy: Master of Mayhem
Shared: Action · Top-Down Shooter · Shooter