SENTRY
Games like SENTRY

Find the Steam hidden gems

actions with secrets you find without a guideor

Games like SENTRY

A solo or co-op spaceship-defense FPS where traps and turrets repel alien boarders; fun but repetitive and light on content.

Moros Protocol
A pixel-art sci-fi FPS roguelite where you survive a haunted warship solo or in co-op through a three-act run-based campaign, with a moderate ~7-9 hour length and mixed-but-positive reviews.
2025-09-18
- Shooter
- Action

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Games like SENTRY | IndieDex

SENTRY
Games like SENTRY

Find the Steam hidden gems

actions with secrets you find without a guideor

Edit search

Games like SENTRY

A solo or co-op spaceship-defense FPS where traps and turrets repel alien boarders; fun but repetitive and light on content.

Moros Protocol
A pixel-art sci-fi FPS roguelite where you survive a haunted warship solo or in co-op through a three-act run-based campaign, with a moderate ~7-9 hour length and mixed-but-positive reviews.
2025-09-18
- Shooter
- Action

First person

Science fiction

Indie

Outpost: Infinity Siege

A military sci-fi FPS/tower-defense/base-building hybrid where you command a mobile outpost solo or in co-op, with mixed reviews and stability concerns.

2024-03-26

Shooter
Action
First person
Science fiction
Strategy
Bird view / Isometric

Deadzone: Rogue

A space roguelite FPS with augment/element buildcraft, solo or co-op, generally fun but with co-op stability and post-launch support concerns.

2025-08-11

Shooter
Action
First person
Science fiction
Thriller

Unsafe Express

A cooperative first-person survival horror game where 1-4 players explore space stations, collect materials, exterminate hostiles, and vote on objectives through repeatable missions.

2024-11-11

Action
Adventure
Horror
Survival
Indie

RIPOUT

An online co-op horror FPS on procedurally generated derelict ships with a Pet Gun companion, loot-driven progression, and a mixed reception ranging from praise to criticism of its unfinished feel.

2024-05-28

Shooter
Action
First person
Horror
Survival

Sanctum 2

A tower defense/FPS hybrid where you and up to four players defend alien-threatened Cores, with fun co-op action but uneven difficulty and reviewer playtimes around 12–16 hours.

2013-05-15

Shooter
Action
Warfare
First person
Science fiction
Survival
Strategy
Indie
Real Time Strategy (RTS)

Space Trench

A compact, single-player survival-horror roguelite FPS about salvaging scrap and fighting hordes in derelict spacecraft, with addictive mechanics and a short, replayable run length.

2026-01-02

Shooter
Action
First person
Horror
Indie

Sanctum

A co-op FPS/tower defense hybrid with swarming aliens and weapon upgrades, where reviewers logged roughly 11–13 hours but note the mix feels dated.

2011-04-15

Shooter
Action
First person
Science fiction
Strategy
Indie

Shrapnel Sentinel

A hand-crafted single-player arena FPS about defending the Pillar of Reality, with quick, intense runs and strong replayability.

2026-07-10

Shooter
Action
First person
Indie

AI.VI

A single-player indie action-adventure mixing FPS and tower defense, with roguelite upgrades and a playful tone, typically played for a couple of hours per reviewers.

2026-03-18

Shooter
Action
Comedy
Science fiction
Adventure
Strategy
Indie

Genesis Alpha One Deluxe Edition

A roguelike FPS about building and defending a spaceship while exploring a procedurally generated galaxy, with mixed reviews and a median playtime of around 14 hours.

2020-02-25

Shooter
Action
First person
Science fiction
Adventure
Survival
Indie
Simulator
Role-playing (RPG)

Siege of Centauri

A sci-fi tower defense game about defending a colony world with upgradable towers and orbital strikes, playable in about 7 hours.

2019-09-12

Action
Science fiction
Strategy
Bird view / Isometric
Indie

Moros Protocol