IMP
Games like IMP

Find the Steam hidden gems

actions with secrets you find without a guideor

Games like IMP

An arcade-inspired third-person shooter with alien horde combat on desolate moons; Early Access, rough but fun, and very short.

Putrefaction 2: Void Walker
A fast-paced, hardcore single-player arcade FPS in the old-school shooter style, with simple point-and-shoot action and a roughly three-hour experience.
2017-05-29
- Shooter
- Action

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Games like IMP | IndieDex

IMP
Games like IMP

Find the Steam hidden gems

actions with secrets you find without a guideor

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Games like IMP

An arcade-inspired third-person shooter with alien horde combat on desolate moons; Early Access, rough but fun, and very short.

Putrefaction 2: Void Walker
A fast-paced, hardcore single-player arcade FPS in the old-school shooter style, with simple point-and-shoot action and a roughly three-hour experience.
2017-05-29
- Shooter
- Action

First person

Science fiction

Adventure

Indie

Role-playing (RPG)

Perilous Warp

A brief, fast-paced retro space shooter with violent alien combat and a mixed reception.

2020-10-20

Shooter
Action
First person
Science fiction
Indie

Voidling Bound

A single-player sci-fi third-person shooter about hatching, evolving, and upgrading space creatures, with praised combat and a short but grindable campaign.

2026-06-09

Action
Science fiction
Adventure
Third person
Role-playing (RPG)

Alien Frontier

A single-player open-world third-person shooter roguelite where you mine resources and battle alien hordes on a deadly alien planet.

2025-10-23

Action
Adventure
Third person

OBLITACRATER

An arcade shoot 'em up with endless alien waves and score-resetting death, playable solo or in local co-op, with reviewers noting rough edges and short ~37-minute sessions.

2026-04-24

Action
Indie
Arcade

Forbidden Ingress

A budget action shooter with co-op multiplayer, mixed reviews, and quick arcade-style combat sessions.

2020-04-23

Action
First person
Adventure
Indie

Incoming + Incoming Forces

A fast-paced arcade-style shooter where you defend your alien home world from a human armada, featuring brutal difficulty and a short single-player campaign.

2014-03-06

Shooter
Action
Warfare
Science fiction
Arcade

Cosmic Swarm

An addictive Early Access space shooter where you defend galactic borders from alien swarms in a short, simple campaign that reviewers generally finish in about an hour.

2025-10-18

Action
Indie

Planetary Dustoff

A short, rough-edged space roguelite shooter with horde combat and boss fights in alien environments, best enjoyed in small doses.

2019-12-16

Shooter
Action
Indie

AI UPRISING

A fast-paced single-player third-person shooter where you defend a spaceship's energy barrier against waves of rogue AI, with a smooth core loop and strategic depth in its current early-access state.

2025-11-28

INVASION

A minimal 3D shooter with survival elements on an unknown planet, offering a brief, no-frills arcade-style experience good for quick time-killing.

2023-02-10

Action
Adventure
Indie
Simulator

In Extremis

A challenging single-player bullet-hell shoot 'em up in a chaotic alien universe, with a provocative abstract style and a brief playtime.

2016-11-16

Shooter
Action
Bird view / Isometric
Indie

Putrefaction 2: Void Walker