Games like Sentinels
Below are 16 hand-picked alternatives to Sentinels for fans of action, strategy, indie, ranked by imho.run's hybrid recommender. Each pick is scored on three signals: collaborative filtering across millions of Steam libraries (which players who logged hours in Sentinels also play), content overlap on genres, categories, and storefront tags, and review-mined "vibe" embeddings that catch tonal similarity even when the genre label differs. Sections below cover closest matches, reviewer cross-mentions, cheaper alternatives, free-to-play picks. No login required — these picks work anchor-only.
Get personalized picks →About Sentinels: Sentinels is a tower defense game lovingly spliced with a first person shooter. Prepare your defenses, then jump into the fray yourself!
Cheaper alternatives
Games in the same vein priced at least 40% below Sentinels at current Steam store prices.
Garry's Mod
WHY THIS
Priced ~75% under Sentinels on Steam right now. Shares Indie with Sentinels.
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 Sentinels on Steam right now. Shares Action and Indie with Sentinels.
A co-op horror about scavenging at abandoned moons to sell scrap to the Company.
Left 4 Dead 2
WHY THIS
Priced ~50% under Sentinels on Steam right now. Shares Action with Sentinels.
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 Sentinels on Steam right now. Shares Action and Indie with Sentinels.
Shoot, stab, burn, poison, tear, vaporise, or crush ragdolls in a large open space.
Fallout: New Vegas
WHY THIS
Priced ~50% under Sentinels on Steam right now. Shares Action with Sentinels.
Welcome to Vegas. New Vegas. Enjoy your stay!
Free alternatives
Free-to-play games that recommended players of this title also tend to enjoy.
The Riftbreaker: Prologue
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action and Strategy with Sentinels.
The Riftbreaker: Prologue allows you to experience the events taking place before the story campaign of the main game. Explore an entirely new world. Gather resources. Build up a base. Defend yourself from thousands of alien creatures.
Bloons TD Battles 2
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action and Strategy with Sentinels.
From the creators of Bloons TD6... Bloons TD Battles 2 is a brand new installment of the top-rated head-to-head tower defense game. Gather your Hero, choose your team of powerful Monkey Towers, and prepare to battle one on one against other players and relentless waves of Bloons!
Bloons TD Battles
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action and Strategy with Sentinels.
Go head to head with other players in a Bloon-popping battle for victory. From the creators of best-selling Bloons TD 5, this all new Battles game is specially designed for multiplayer combat, featuring the ability to control bloons directly and send them charging past your opponent's defenses.
Blackwake
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action and Strategy with Sentinels.
Blackwake is a multiplayer naval FPS focused on teamwork and cooperation. Fire the cannons, sink enemy ships or board them with firearms and steel.
Darwin Project
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action and Indie with Sentinels.
In Darwin Project, ten inmates must survive the elements, track each other, fight, craft tools, and use their social skills to be the last one standing. It's a unique take on battle royale with a Show Director to influence the match and Spectator Interactions to create a one-of-a-kind game show.
Yet Another Zombie Defense
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action and Strategy with Sentinels.
Darkness is coming. How long can YOU survive? Build your base by day, defend it by night. Play in online or local co-op. Stay alive as long as you can.
AirMech
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action and Strategy with Sentinels.
AirMech® Strike is a fast paced Action-RTS game that can be played solo, coop, or competitively online. Earn Kudos and Experience in battle and unlock a wide collection of AirMechs and Units while you practice the perfect strategy to emerge victorious!
Time Clickers
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action and Indie with Sentinels.
Time Clickers is what's called an 'incremental game'. There's always a fun upgrade to look forward to, and the numbers keep getting bigger! Hire a team to fight for you, even when you're offline!
Narrow it down
Head-to-head comparisons
Frequently asked about Sentinels
- How much does Sentinels cost?
- Sentinels is listed on Steam at 19.99 USD (current store price; Steam sales may reduce this temporarily).
- Who developed Sentinels?
- Sentinels was developed by MindWalker 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 Sentinels.
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