Games like Outpost: Infinity Siege
If Outpost: Infinity Siege is your kind of game, the closest matches are Per Aspera, Roboden and The Riftbreaker — picked from the ranked list below. 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 →Outpost: Infinity Siege is a post-apocalyptic action-strategy hybrid developed by Team Ranger and published by Lightning Games, released in 2024 at $24.99. The game combines first-person shooter gunplay with tower defense and base-building mechanics, tasking players with commanding mobile outposts while collecting weapon units to enhance their defensive installations. Set in a sci-fi world of robot enemies and surveillance-restricted zones, players engage in resource management and strategic positioning across extended sessions. The game supports online co-op and presents a challenging experience requiring tactical thinking. According to Steam reviews, the title holds 72% positive reception from over 2,500 players. It does not currently support Steam Deck play.
About Outpost: Infinity Siege: Command Mobile Outpost and take XEN Firearm to venture deep into the Signet surveillance off-limit area. Collect unique Weapon Units. Amp up the firepower of the Outpost that fights with you. This is an FTD game - FPS, Tower Defense, Base Building and much more all at the same time.

Players who liked Outpost: Infinity Siege also play
Steam players who put hours into Outpost: Infinity Siege 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.
Per Aspera
WHY THIS
Top pick for Outpost: Infinity Siege fans by collaborative filtering across millions of Steam libraries. Shares Strategy with Outpost: Infinity Siege.
Make Mars your own! Take control of the world’s most sophisticated AI (AMI) and terraform the surface of the Red Planet for a city-building experience on a planetary scale. Transform this barren world into a lush paradise and explore the surface for any ancient secrets that may be waiting.
Roboden
WHY THIS
Second-strongest match for Outpost: Infinity Siege fans by collaborative filtering across millions of Steam libraries. Shares Strategy with Outpost: Infinity Siege.
Roboden is a fresh take on the RTS genre: less micro-control tedium with more units!
The Riftbreaker
WHY THIS
Third-strongest match for Outpost: Infinity Siege fans by collaborative filtering across millions of Steam libraries. Shares Action and Strategy with Outpost: Infinity Siege.
The Riftbreaker is a solo or Co-op base-building, survival game with Action-RPG elements for up to 4 players. Hack & slash countless hordes of enemies. Build up your base, craft powerful weapons and research new inventions to survive.
Out of Ammo
WHY THIS
Ranked #4 for Outpost: Infinity Siege fans by collaborative filtering across millions of Steam libraries. Shares Action and Strategy with Outpost: Infinity Siege.
Out of Ammo is an intense VR Tower Defense / FPS hybrid strategy game that will have you constructing defenses, calling in artillery, issuing orders, and taking direct control of your soldiers in order to survive a relentless enemy onslaught.
Golemworks
WHY THIS
Ranked #7 for Outpost: Infinity Siege fans by collaborative filtering across millions of Steam libraries. Shares Strategy with Outpost: Infinity Siege.
A strategic fusion of automation game and tower defense
Armed to the Gears
WHY THIS
Ranked #8 for Outpost: Infinity Siege fans by collaborative filtering across millions of Steam libraries. Shares Action and Strategy with Outpost: Infinity Siege.
Control a fully armed Mech and fight through cyberpunk cities, military bases and industrial ruins. Capture and defend territories, build turrets and structures, and wage war against powerful enemies!
Reviewers mention these as similar to Outpost: Infinity Siege
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.
Orcs Must Die!
WHY THIS
Reviewers of Outpost: Infinity Siege cross-mention this title as a similar play. Shares Action and Strategy with Outpost: Infinity Siege.
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.
Escape from Tarkov
WHY THIS
Reviewers of Outpost: Infinity Siege cross-mention this title as a similar play. Shares Action with Outpost: Infinity Siege.
Escape from Tarkov is the original extraction FPS where every raid is a gamble with death. Prep your raid, bleed, endure and fight through ruthless PMC players and Scavs, gain tactical advantage and cling to your loot — only extraction decides if you live or lose it all.
The Riftbreaker
WHY THIS
Reviewers of Outpost: Infinity Siege cross-mention this title as a similar play. Shares Action and Strategy with Outpost: Infinity Siege.
The Riftbreaker is a solo or Co-op base-building, survival game with Action-RPG elements for up to 4 players. Hack & slash countless hordes of enemies. Build up your base, craft powerful weapons and research new inventions to survive.
The Last Spell
WHY THIS
Reviewers of Outpost: Infinity Siege cross-mention this title as a similar play. Shares Action and Strategy with Outpost: Infinity Siege.
Defend the last bastion of humanity with your squad of heroes! Exterminate fiendish monsters with magic and brute force by night and re-build your battered city defenses by day in this tactical RPG with rogue-lite mechanics.
RimWorld
WHY THIS
Reviewers of Outpost: Infinity Siege cross-mention this title as a similar play. Shares Strategy with Outpost: Infinity Siege.
A sci-fi colony sim driven by an intelligent AI storyteller. Generates stories by simulating psychology, ecology, gunplay, melee combat, climate, biomes, diplomacy, interpersonal relationships, art, medicine, trade, and more.
Diplomacy is Not an Option
WHY THIS
Reviewers of Outpost: Infinity Siege cross-mention this title as a similar play. Shares Action and Strategy with Outpost: Infinity Siege.
Diplomacy is Not an Option is a strategy game set in a medieval fantasy world. Build your town and defenses, raise huge armies and fight against massive hordes of enemies. How long can you survive?
Cataclismo
WHY THIS
Reviewers of Outpost: Infinity Siege cross-mention this title as a similar play. Shares Strategy with Outpost: Infinity Siege.
Design and build fortresses brick by brick to stand against endless hordes of Horrors in this real-time strategy game with resource management, siege defense, and exploration. Lead from the ramparts, push back the darkness, and hold fast against the creatures of the Mist.
From Glory To Goo
WHY THIS
Reviewers of Outpost: Infinity Siege cross-mention this title as a similar play. Shares Strategy with Outpost: Infinity Siege.
From Glory To Goo is a Sci-Fi survival RTS set on an alien world. Serve as humanity's bulwark by establishing a colony and supporting your colonists still in orbit. But beware, for The Goo, a relentless and shape-shifting force approaches from all sides, even above and below.
Cheaper alternatives
Games in the same vein priced at least 40% below Outpost: Infinity Siege at current Steam store prices.
Lethal Company
WHY THIS
Priced ~60% under Outpost: Infinity Siege on Steam right now. Shares Action with Outpost: Infinity Siege.
A co-op horror about scavenging at abandoned moons to sell scrap to the Company.
Left 4 Dead 2
WHY THIS
Priced ~60% under Outpost: Infinity Siege on Steam right now. Shares Action with Outpost: Infinity Siege.
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.
Bloons TD 6
WHY THIS
Priced ~44% under Outpost: Infinity Siege on Steam right now. Shares Strategy with Outpost: Infinity Siege.
The Bloons are back and better than ever! Get ready for a massive 3D tower defense game designed to give you hours and hours of the best strategy gaming available.
People Playground
WHY THIS
Priced ~60% under Outpost: Infinity Siege on Steam right now. Shares Action with Outpost: Infinity Siege.
Shoot, stab, burn, poison, tear, vaporise, or crush ragdolls in a large open space.
Fallout: New Vegas
WHY THIS
Priced ~60% under Outpost: Infinity Siege on Steam right now. Shares Action with Outpost: Infinity Siege.
Welcome to Vegas. New Vegas. Enjoy your stay!
Vampire Survivors
WHY THIS
Priced ~80% under Outpost: Infinity Siege on Steam right now. Shares Action with Outpost: Infinity Siege.
Mow down thousands of night creatures and survive until dawn! Vampire Survivors is a gothic horror casual game with rogue-lite elements, where your choices can allow you to quickly snowball against the hundreds of monsters that get thrown at you. Be the bullet hell!
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 with Outpost: Infinity Siege.
Welcome to the ultimate FNAF mashup, featuring 50 selectable characters and custom difficulties!
STRAFTAT
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action with Outpost: Infinity Siege.
STRAFTAT is a 1v1/2v2 ONLINE first person SHOOTER with quick rounds in over 350 MAPS ; Including all WEAPONS, proximity chat and 4 players FFA.
Counter-Strike:Global Offensive
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action with Outpost: Infinity Siege.
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 with Outpost: Infinity Siege.
The Expendabros have assembled and set their sights on the forces of ruthless arms dealer Conrad Stonebanks in the forests of Eastern Europe.
Iron Snout
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action with Outpost: Infinity Siege.
Iron Snout is a fast, colorful and brutal fighting game in which you will be helping a piglet fight for its life against hordes of wolves.
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!
DORONKO WANKO
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action with Outpost: Infinity Siege.
『DORONKO WANKO』 is a DORONKO Action Game. In this game, You can become a cute, innocent Pomeranian, make your master's home messy and dirty. "Will the master be angry with me?" Don't worry. Because you are a sweet doggie.
Outpath: First Journey
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it.
Outpath: First Journey is a prologue chapter of the main game, Outpath. An experimental clicker base building game. Craft, gather & manage resources, build your base and buy more islands to exploit and expand!
Narrow it down
Head-to-head comparisons
Frequently asked about Outpost: Infinity Siege
- Does Outpost: Infinity Siege work on Steam Deck?
- Outpost: Infinity Siege is currently rated Unsupported on Steam Deck. It may not launch or may have significant issues that block normal play.
- How much does Outpost: Infinity Siege cost?
- Outpost: Infinity Siege is listed on Steam at 24.99 USD (current store price; Steam sales may reduce this temporarily).
- Does Outpost: Infinity Siege have multiplayer or co-op?
- Yes — Outpost: Infinity Siege supports multi-player play according to its Steam store listing (Multi-player, Online Co-op, Co-op).
- What games are most similar to Outpost: Infinity Siege?
- Based on Steam play patterns and shared genres/tags, the games most often recommended alongside Outpost: Infinity Siege are Per Aspera, Roboden, The Riftbreaker.
- Who developed Outpost: Infinity Siege?
- Outpost: Infinity Siege was developed by Team Ranger and published by Lightning Games.
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 Outpost: Infinity Siege.
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