Games like SENTRY
If SENTRY is your kind of game, the closest matches are Sanctum 2, Ghost Battalion and Starship Troopers: Extermination — picked from the ranked list below. Reviewers single out its atmospheric, challenging and contemplative. Each pick is ranked by what players of this game also play, shared genres and tags, and review-mined similarity — not a generic popularity list.
Get personalized picks →About 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.
Players who liked SENTRY also play
Steam players who put hours into SENTRY also tend to own these titles — a signal called collaborative filtering. imho.run cross-references millions of library ownership patterns to surface games whose real audiences overlap, regardless of whether their genre tags match.
Sanctum 2
WHY THIS
Shares a challenging mood with SENTRY.
Top pick for SENTRY fans by collaborative filtering across millions of Steam libraries. Shares Action and Strategy with SENTRY.
Sanctum 2 is the sequel to the world’s first Tower Defense/FPS hybrid game. Pick from four unique character classes and embark on a mission to protect the oxygen-producing Cores from hordes of deadly aliens who are threatened by their existence.
Ghost Battalion
WHY THIS
Second-strongest match for SENTRY fans by collaborative filtering across millions of Steam libraries. Shares Action and Indie with SENTRY.
A retro Sci-Fi First Person/Third Person shooter game similar to Star Wars: Battlefront and Rogue Squadron series. The player can choose to battle the alien race and their monster creations in Single-Player or in Multiplayer mode.
Starship Troopers: Extermination
WHY THIS
Shares an intense mood with SENTRY.
Third-strongest match for SENTRY fans by collaborative filtering across millions of Steam libraries. Shares Action and Indie with SENTRY.
Starship Troopers: Extermination is a 16-player co-op FPS that puts you on the far-off frontlines of an all-out battle against the Bugs! Squad up, grab your rifle, and do your part as an elite Deep Space Vanguard Trooper to take back planets from the Arachnid threat!
No Creeps Were Harmed TD
WHY THIS
Shares a contemplative mood with SENTRY.
Ranked #4 for SENTRY fans by collaborative filtering across millions of Steam libraries. Shares Strategy with SENTRY.
Employ lethal turrets, traps, and gadgets to defend against an onslaught of evolving creeps! Step into a twisted, hyper 3D, mind bending realm. Upgrade and adapt your defenses. Become a master maze crafter. Collect bizarre artifacts. Rush creeps for lucrative rewards, and succumb to greed!
RIPOUT
WHY THIS
Shares an atmospheric mood with SENTRY.
Ranked #5 for SENTRY fans by collaborative filtering across millions of Steam libraries. Shares Action with SENTRY.
Ripout is an online Co-Op horror FPS that will have players fight their way through procedurally generated derelict ships filled with mutants capable of reconfiguring their alien bodies. Survive with your trusty Pet Gun companion, collect loot, and customize your character to fit your playstyle.
Nemesis: Distress
WHY THIS
Shares an atmospheric mood with SENTRY.
Ranked #6 for SENTRY fans by collaborative filtering across millions of Steam libraries. Shares Action and Early Access with SENTRY.
NEMESIS DISTRESS is a unique multiplayer Sci-Fi horror experience that aims at creating unforgettable, cinematic moments. Remember – this is NOT a shooter, in Nemesis you are not the hunter. You are the PREY.
Evolve Stage 2
WHY THIS
Shares an atmospheric mood with SENTRY.
Ranked #7 for SENTRY fans by collaborative filtering across millions of Steam libraries. Shares Action with SENTRY.
Play Evolve for free with Evolve Stage 2! Evolve Stage 2 is a next-generation free multiplayer shooter featuring addictive 4v1 gameplay. One player-controlled monster must evade and outsmart a team of four uniquely skilled hunters.
Earthfall
WHY THIS
Shares a challenging mood with SENTRY.
Ranked #8 for SENTRY fans by collaborative filtering across millions of Steam libraries. Shares Action with SENTRY.
NOW AVAILABLE! When the Earth falls to an extra-terrestrial invasion, humanity becomes an endangered species. Earthfall is a four-player cooperative shooter that challenges players to survive hordes of ruthless alien drones and their inscrutable masters.
Reviewers mention these as similar to SENTRY
Surfaced from review text: when other players write 'if you liked X, try Y', we catch the name and resolve it back to a Steam game.
Sanctum
WHY THIS
Shares an intense mood with SENTRY.
Reviewers of SENTRY cross-mention this title as a similar play. Shares Action and Strategy with SENTRY.
You think Tower Defense games are all about building? You thought wrong. Sanctum is not your average Tower Defense title. When the havoc starts, you get to join the fray! As one of the world’s first First Person Shooter - Tower Defense games, Sanctum has taken the best of both worlds to deliver an epic, one-of-a-kind experience.
Orcs Must Die!
WHY THIS
Shares a challenging mood with SENTRY.
Reviewers of SENTRY cross-mention this title as a similar play. Shares Action and Strategy with SENTRY.
Slice them, burn them, skewer them, and launch them - no matter how you get it done, orcs must die in this fantasy action-strategy game from Robot Entertainment.
Dungeon Defenders
WHY THIS
Shares a challenging mood with SENTRY.
Reviewers of SENTRY cross-mention this title as a similar play. Shares Action and Strategy with SENTRY.
Create a hero from one of four classes to save Etheria in this 4-player coop Tower Defense Action-RPG. Includes Steam exclusive Portal gun & TF2 familiars!
Orcs Must Die! 2
WHY THIS
Shares an intense mood with SENTRY.
Reviewers of SENTRY cross-mention this title as a similar play. Shares Action and Strategy with SENTRY.
You’ve tossed, burned and sliced them by the thousands – now orcs must die more than ever before! Grab a friend and slay orcs in untold numbers in this sequel to the 2011 AIAS Strategy Game of the Year from Robot Entertainment.
Sanctum 2
WHY THIS
Shares a challenging mood with SENTRY.
Reviewers of SENTRY cross-mention this title as a similar play. Shares Action and Strategy with SENTRY.
Sanctum 2 is the sequel to the world’s first Tower Defense/FPS hybrid game. Pick from four unique character classes and embark on a mission to protect the oxygen-producing Cores from hordes of deadly aliens who are threatened by their existence.
Cheaper alternatives
Games in the same vein priced at least 40% below SENTRY at current Steam store prices.
Garry's Mod
WHY THIS
Priced ~75% under SENTRY on Steam right now. Shares Indie with SENTRY.
Garry's Mod is a physics sandbox. There aren't any predefined aims or goals. We give you the tools and leave you to play.
Lethal Company
WHY THIS
Priced ~50% under SENTRY on Steam right now. Shares Action and Indie with SENTRY.
A co-op horror about scavenging at abandoned moons to sell scrap to the Company.
Left 4 Dead 2
WHY THIS
Priced ~50% under SENTRY on Steam right now. Shares Action with SENTRY.
Set in the zombie apocalypse, Left 4 Dead 2 is a co-operative action horror FPS takes you and your friends through the cities, swamps and cemeteries of the Deep South, from Savannah to New Orleans across five expansive campaigns.
People Playground
WHY THIS
Priced ~50% under SENTRY on Steam right now. Shares Action and Indie with SENTRY.
Shoot, stab, burn, poison, tear, vaporise, or crush ragdolls in a large open space.
Fallout: New Vegas
WHY THIS
Priced ~50% under SENTRY on Steam right now. Shares Action with SENTRY.
Welcome to Vegas. New Vegas. Enjoy your stay!
Free alternatives
Free-to-play games that recommended players of this title also tend to enjoy.
Ultimate Custom Night
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action and Indie with SENTRY.
Welcome to the ultimate FNAF mashup, featuring 50 selectable characters and custom difficulties!
ENA: Dream BBQ
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie with SENTRY.
Experience surreal environments and inexplicable characters as ENA in a new wild world.
Indigo Park: Chapter 1
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action and Indie with SENTRY.
Explore the abandoned childhood wonder of Indigo Park! Guided by Rambley the Raccoon, help restore power to the destroyed amusement park while you run from the reason it shut down.
The Looker
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie with SENTRY.
You wake up, alone, on a strangely familiar island full of puzzles that will frustrate and annoy you.
Counter-Strike:Global Offensive
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action with SENTRY.
Counter-Strike:Global Offensive (CS:GO) expands upon the team-based action gameplay that it pioneered when it was launched over 2 decades ago. CS:GO features new maps, characters, weapons, and game modes, and delivers updated versions of the classic CS content (de_dust2, etc.).
The Expendabros
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action and Indie with SENTRY.
The Expendabros have assembled and set their sights on the forces of ruthless arms dealer Conrad Stonebanks in the forests of Eastern Europe.
The Lab
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it.
Welcome to The Lab, a compilation of Valve’s room-scale VR experiments set in a pocket universe within Aperture Science. Fix a robot, defend a castle, adopt a mechanical dog, and more. Still not sold? It’s free!
Narrow it down
Head-to-head comparisons
Frequently asked about SENTRY
- Does SENTRY run on Steam Deck?
- SENTRY is rated Playable on Steam Deck — it runs, but expect some manual adjustments (control remapping, text size, or graphics settings) for the best experience.
- How much does SENTRY cost?
- SENTRY is listed on Steam at 19.99 USD (current store price; Steam sales may reduce this temporarily).
- Does SENTRY have multiplayer or co-op?
- Yes — SENTRY supports multi-player play according to its Steam store listing (Multi-player, Online Co-op, Co-op).
- What games are most similar to SENTRY?
- Based on Steam play patterns and shared genres/tags, the games most often recommended alongside SENTRY are Sanctum 2, Ghost Battalion, Starship Troopers: Extermination.
- Who developed SENTRY?
- SENTRY was developed by Fireblade Software.
imho.run ranks Steam game alternatives using a mix of collaborative filtering (ALS / iALS / EASE / LightGCN), content scoring over genres, categories, Steam tags, developers, and publishers, plus AI-extracted vibes mined from review text. The page above is generated in seed mode anchored on SENTRY.
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