Single-player games like Alien Outpost
Below are 9 single-player Steam games similar to Alien Outpost, ranked by player overlap. Every pick carries Steam's Single-player category, so multiplayer-only titles or always-online games don't sneak in. imho.run pulls the category data from Steam directly — Single-player here matches what the store labels.
Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like Alien Outpost page.
Ranked picks
- 1
Little Elf Tanks
Single-player alternative to Alien Outpost — playable solo, no multiplayer required. Shares Action and Indie with Alien Outpost.
A bombastic bug busting adventure! Play as one of four playable characters in their quest to to free their fellow elves from the clutches of an evil army of spiders. If they crawl, blast em all! Let nothing stand in your way.
- 2
KosmoSquad
Single-player alternative to Alien Outpost — playable solo, no multiplayer required. Shares Action and Indie with Alien Outpost.
KosmoSquad is a twin-stick arena shooter where you survive as long as you can against an ever-increasing hoard of enemies. Fight alone or with up to three friends and collect star multipliers to maximize your high score. Use your score points to purchase upgrades for your ship and try again!
- 3
Pesticide Not Required
Single-player alternative to Alien Outpost — playable solo, no multiplayer required. Shares Action with Alien Outpost.
Mow down countless crops and corrupt critters while crafting game-breaking builds! Pesticide Not Required is an action roguelite bullet heaven game with farming sim elements that offers a myriad of stats and special character traits to create wildly diverse run possibilities.
- 4
Cyclo Chambers
Single-player alternative to Alien Outpost — playable solo, no multiplayer required. Shares Action and Indie with Alien Outpost.
Collect synergizing items to create an overpowered character to fight hordes of cyclops monsters. Cyclo Chambers is a fast-paced, top-down arena shooter with light rogue-like elements. 150 items to choose from to create frantic combinations. Different runs every time.
- 5
Peace Data
Single-player alternative to Alien Outpost — playable solo, no multiplayer required. Shares Action and Indie with Alien Outpost.
Peace Data — hard "Roguelike" game, in which you have to play for Bitard, saving Rusland from the tyranny of the authorities that destroyed the opposition and led the country to ruin, making slaves of citizens.
- 6
REPLIKATOR
Single-player alternative to Alien Outpost — playable solo, no multiplayer required. Shares Action and Indie with Alien Outpost.
In this twin stick roguelite shooter, you play as one of the galactic mercenaries, explore a mysterious scientific complex and uncover the secret of the REPLIKATOR project.
- 7
Go Mecha Ball
Single-player alternative to Alien Outpost — playable solo, no multiplayer required. Shares Action with Alien Outpost.
Load up and roll out, in this twin stick shooter with roguelike progression! Blast your way through arcade-style levels, using pinball-style physics mixed with an arsenal of devastating weapons. Defeat waves of enemy bots, battle big bosses, and upgrade your mech between runs.
- 8
Sharded World
Single-player alternative to Alien Outpost — playable solo, no multiplayer required. Shares Action and Indie with Alien Outpost.
Sharded World is a reversed bullet hell, rogue-lite, ARPG game combining simple gameplay and great rpg progression. Each level has its own unique features and challenges. Upgradable characters, weapons and orbs. Challenges, daily quests, and leaderboards. Fight, get stronger and defeat the Lich!
- 9
Astro Dash
Single-player alternative to Alien Outpost — playable solo, no multiplayer required. Shares Action and Indie with Alien Outpost.
A colourful retro physics game for causal and pro gamers alike. Whizzing round the cosmos in your flying saucer dodging asteroids, black holes, cannon fire & assorted obstacles picking up crystals. Thrusting, dodging & speeding through the 30 obstacle filled levels.