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SENTRY
SENTRY is an action-defense first person shooter where you defend your spaceship against invading aliens. Plot an escape route through hostile space and battle the enemy across your vessel with the support of traps, turrets and environmental destruction.
What players say
Steam review score and the most-helpful voices, which may include critical ones. Data as of 2026-05-20.
“The gameplay itself is suprisingly fun, a realy fun mix of rouglike and tower defence where the defence does a great job in being intense, forcing you to need to balance between keeping the enemy off the exit and not getting yourself killed with a nice variaty of maps in your…”
— a player, Steam review · 10 hrs played“Fun FPS/Tower Defence mix but ♥♥♥♥♥♥♥♥♥ is it difficult in singleplayer. Probably best to play multi for this so you're not overwhelmed by point management. I enjoy it but it does start to feel unfair when you're swamped by big tanks and fast flying bugs And if there's anything…”
— a player, Steam review · 5 hrs played“If I could give a neutral review I would. I LOVE this genre - combining active gameplay with the usually passive tower defense. Dungeon Defenders, Sanctum 1 and 2, I loved those. I loved grinding in DD with friends, I liked exploring for easter eggs in Sanctum, I like the give…”
— a player, Steam review · 2 hrs playedPlayer activity
Monthly average concurrent players. Live count fetched 2026-07-24 00:59 UTC · history via SteamCharts.
Price tracking
US-region pricing (USD), sampled twice daily by our own tracker since 2026-07-25. Steam prices vary by region — always confirm your local price on Steam.
Regional prices at last sample, in local currency — Steam sets each region's price independently.
Cheapest → most expensive, converted to USD at ECB reference rates (2026-07-24). Relative comparison only.
Latest official news
Developer announcements via the Steam news API — links go to the original posts. More across all games on the news hub.
New Beta Branch update available!
Hi everyone, Major Update 5 is approaching! There have been loads of changes and your thoughts will be vital in helping us make adjustments, so we’d love to get your feedback on it. To access version
Dev Transmission (May 2026)
Hi everyone, While the Prologue is being tested we’ve been circling back to the main game this month and making some big changes. Before that though, just a quick update on our upcoming plans: origina
Dev Transmission (April 2026)
Hi everyone, We’ve added a new enemy this month; the Bile Pod. These aren’t traditional enemies that enter via breach points. Instead, these are spawned into levels as a hazard. They are positioned on
Dev Transmission (March 2026)
Hi everyone, The main focus for March has been our new opening sequence. Our goals for this are creating something that is a fun/cool introduction, making people eager to dive into the rest of the gam
Dev Transmission (February 2026)
Hi everyone, There have been three main areas we’ve been progressing this month. The first is continued gamepad support and we now have full coverage across all of our menus. We’ve also implemented vi
Games like SENTRY
From our knowledge graph — ranked by shared traits, not a black box. Each card says why it's here.
Force Reboot
94.5% · 507 reviews
shares Rogue Lite, Rogue Like, FPS, Stylized
Sanctum 2
89.9% · 7,958 reviews
shares Aliens, Tower Defense, FPS, Survival
Void Bastards
85.9% · 3,921 reviews
shares Space, Rogue Lite, Rogue Like, FPS
Aliens vs. Ghosts
90.4% · 508 reviews
shares Aliens, FPS, Stylized, Combat
Drill Core
85.0% · 914 reviews
shares Aliens, Tower Defense, Space, Rogue Lite
Wall World
88.6% · 4,125 reviews
shares Aliens, Tower Defense, Rogue Lite, Rogue Like
Starship Troopers: Extermination
81.1% · 23,134 reviews
shares Aliens, Space, FPS, Combat
STAR WARS™ Battlefront
80.4% · 2,888 reviews
shares Aliens, Space, FPS, Combat
Screenshots
Official Steam store screenshots — click any shot to enlarge.
Facts & details
From the Steam store record, snapshot 2026-05-20.
| Genres | Action, Indie, Strategy, Early Access |
| Player tags | Tower Defense · Strategy · FPS · Survival · Sci-fi · Action · Colorful · Stylized · 3D · Space · First-Person · Rogue-lite (SteamSpy community voting) |
| Features | Single-player · Multi-player · Co-op · Online Co-op · Custom Volume Controls · Playable without Timed Input · Partial Controller Support · Steam Cloud |
| Languages | English * , French, Italian, German, Spanish - Spain, Japanese, Korean, Polish, Portuguese - Brazil, Russian, Simplified Chinese, Turkish, Ukrainian, Traditional Chinese * |
| Estimated owners | 20,000 – 50,000 (SteamSpy) |
| Official site | https://sentrygame.com/ |
Minimum system requirements (PC)
Minimum: Requires a 64-bit processor and operating system OS: Windows 10 64-Bit Processor: 2.4GHz, 4 Cores Memory: 8 GB RAM Graphics: Intel HD Graphics 630 DirectX: Version 11 Storage: 3 GB available space Sound Card: