IMHO.

Games like Smile Protocol

If Smile Protocol is your kind of game, the closest matches are They Killed Your Cat, Bone Mayhem and GODSPEED — 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.

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About Smile Protocol: Survive intense combat, earn rewards, open cases, unlock rare skins, and customize your arsenal in this high-pressure survival FPS where every run matters.

2026ActionIndieSimulationCasual5.09 USDWindowsby OxygenStudio
Smile Protocol — Steam game cover

Players who liked Smile Protocol also play

Steam players who put hours into Smile Protocol 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.

  1. They Killed Your Cat

    WHY THIS

    Top pick for Smile Protocol fans by collaborative filtering across millions of Steam libraries. Shares Action and Indie with Smile Protocol.

    A short but relentless first-person shooter featuring manual reloading, walking, and blinking, with settings that let you customize your experience.

    2026ActionIndieSimulation6.99 USDDeck PlayableSteam ↗
  2. Bone Mayhem

    WHY THIS

    Second-strongest match for Smile Protocol fans by collaborative filtering across millions of Steam libraries. Shares Action with Smile Protocol.

    Bone Mayhem is a first person shooter versus waves of enemies, where player can apply modifications to weapon and active abilities.

    2022ActionFree To PlayFreeSteam ↗
  3. GODSPEED

    WHY THIS

    Third-strongest match for Smile Protocol fans by collaborative filtering across millions of Steam libraries. Shares Action and Indie with Smile Protocol.

    GODSPEED is a brutal first-person arena shooter about never standing still. Fight your way out of hell with two crucifix pistols, conquer four arenas and bosses, and compete for the fastest times on the global leaderboards. The hardest difficulty isn't meant to be fair.

    2026ActionIndieSteam ↗
  4. Emitters - Drone Invasions

    WHY THIS

    Ranked #4 for Smile Protocol fans by collaborative filtering across millions of Steam libraries. Shares Action and Indie with Smile Protocol.

    A fast-paced, first-person experience set in a future taken over by deadly hi-tech drones. As humanity's only hope, it's your mission to identify this threat's origin and neutralize it. But are you ready to face an army whose single target is yourself?

    2018ActionIndieCasual15.99 USDSteam ↗
  5. The Void Project

    WHY THIS

    Ranked #5 for Smile Protocol fans by collaborative filtering across millions of Steam libraries. Shares Action and Indie with Smile Protocol.

    Fight through relentless demon hordes in a fast-paced and retro-inspired arena shooter, where mastering speed, strategy, and precision will push you to the top of the leaderboard.

    2024ActionIndie4.99 USDSteam ↗
  6. THE MEME HUNTER

    WHY THIS

    Ranked #6 for Smile Protocol fans by collaborative filtering across millions of Steam libraries. Shares Action and Indie with Smile Protocol.

    THE MEME HUNTER is a dynamic first–person shooter in which you will exterminate crowds of evil memes. They're everywhere. They're out for your blood. They will follow you wherever you go…

    2023ActionIndieAdventure0.99 USDSteam ↗
  7. Twisted Tower

    WHY THIS

    Ranked #7 for Smile Protocol fans by collaborative filtering across millions of Steam libraries. Shares Action and Indie with Smile Protocol.

    Blast your way through an abandoned 1950s theme park crawling with fairy-tale mascots, twisted puzzles, and deadly traps. Uncover the dark secrets of your past as you race to the top to win back the love of your life.

    2026ActionIndieAdventure13.49 USDDeck VerifiedSteam ↗
  8. Devil Daggers

    WHY THIS

    Ranked #8 for Smile Protocol fans by collaborative filtering across millions of Steam libraries. Shares Action and Indie with Smile Protocol.

    Devil Daggers is a fast-paced shooter that places you in an abyssal arena to face endless legions of demons. Armed with versatile magic daggers and a fluid movement system, fight to survive as long as you can.

    2016ActionIndie9.99 USDDeck PlayableSteam ↗

Cheaper alternatives

Games in the same vein priced at least 40% below Smile Protocol at current Steam store prices.

  1. POSTAL 2

    WHY THIS

    Priced ~81% under Smile Protocol on Steam right now. Shares Action and Indie with Smile Protocol.

    Live a week in the life of "The POSTAL Dude"; a hapless everyman just trying to check off some chores. Buying milk, returning an overdue library book, getting Gary Coleman's autograph, what could possibly go wrong?

    2012ActionIndieAdventure0.99 USDDeck VerifiedSteam ↗
  2. Buckshot Roulette

    WHY THIS

    Priced ~41% under Smile Protocol on Steam right now. Shares Action and Indie with Smile Protocol.

    Play Russian roulette with a 12-gauge shotgun. Four enter. One leaves. Roll the dice with your life. Good luck!

    2024ActionIndieSimulation2.99 USDSteam ↗
  3. The Test

    WHY THIS

    Priced ~61% under Smile Protocol on Steam right now. Shares Indie and Simulation with Smile Protocol.

    You will answer a series of questions that will reveal truths from deep within. These questions may make you uncomfortable, but with great knowledge comes great sacrifice. Can you make it all the way through The Test, and if you do, are you sure you want the answers you seek?

    2020IndieAdventureSimulation1.99 USDDeck VerifiedSteam ↗
  4. Milk inside a bag of milk inside a bag of milk

    WHY THIS

    Priced ~71% under Smile Protocol on Steam right now. Shares Indie with Smile Protocol.

    A short story about what sort of challenges everyday little things can be. Help the girl buy milk, be the first not to disappoint her.

    2020IndieAdventure1.49 USDDeck PlayableSteam ↗
  5. Blood and Bacon

    WHY THIS

    Priced ~81% under Smile Protocol on Steam right now. Shares Action and Casual with Smile Protocol.

    This Co-op Shooter , has Day and Night levels, multiple maps, players will take on 25 enemy types and numerous bosses, like Gargantuan Monsters and Minibosses every 10 days as you explore, shoot and run for your life against the onslaught of porcine monstrosities.

    2016ActionAdventureCasual0.99 USDSteam ↗
  6. Crypt of the NecroDancer

    WHY THIS

    Priced ~41% under Smile Protocol on Steam right now. Shares Action and Indie with Smile Protocol.

    Crypt of the NecroDancer is an award winning hardcore roguelike rhythm game. Move to the music and deliver beatdowns to the beat! Groove to the epic Danny Baranowsky soundtrack, or select songs from your own MP3 collection!

    2015ActionIndieRPG2.99 USDDeck VerifiedSteam ↗
  7. Super Hexagon

    WHY THIS

    Priced ~41% under Smile Protocol on Steam right now. Shares Action and Indie with Smile Protocol.

    Super Hexagon is a minimal action game by Terry Cavanagh, with music by Chipzel.

    2012ActionIndie2.99 USDDeck VerifiedSteam ↗
  8. Placid Plastic Duck Simulator

    WHY THIS

    Priced ~61% under Smile Protocol on Steam right now. Shares Simulation and Casual with Smile Protocol.

    The ultimate high-tech rubber duck simulation, Placid Plastic Duck brings you dangerous levels of relaxation. With chill music, dreamy 3D graphics, and many different happy ducks, your only priority is to float around. Zero Ducks given.

    2022SimulationCasual1.99 USDDeck VerifiedSteam ↗

Free alternatives

Free-to-play games that recommended players of this title also tend to enjoy.

  1. Doki Doki Literature Club!

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie and Casual with Smile Protocol.

    The Literature Club is full of cute girls! Will you write the way into their heart? This game is not suitable for children or those who are easily disturbed.

    2017IndieFree To PlayCasualFreeDeck PlayableSteam ↗
  2. Life is Strange - Episode 1

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action with Smile Protocol.

    Episode 1 now FREE! Life is Strange is an award-winning and critically acclaimed episodic adventure game that allows the player to rewind time and affect the past, present and future.

    2015ActionAdventureFreeDeck PlayableSteam ↗
  3. Ultimate Custom Night

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action and Indie with Smile Protocol.

    Welcome to the ultimate FNAF mashup, featuring 50 selectable characters and custom difficulties!

    2018ActionIndieFree To PlayFreeSteam ↗
  4. 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 Smile Protocol.

    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.

    2024ActionIndieAdventureFreeDeck PlayableSteam ↗
  5. STRAFTAT

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action with Smile Protocol.

    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.

    2024ActionFreeDeck PlayableSteam ↗
  6. Counter-Strike:Global Offensive

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action with Smile Protocol.

    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.).

    2012ActionFree To PlayFreeDeck PlayableSteam ↗
  7. Awaria

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action and Indie with Smile Protocol.

    Awaria is a short game about working in haunted maintenance tunnels.

    2024ActionIndieFree To PlayFreeDeck PlayableSteam ↗
  8. The Expendabros

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action and Indie with Smile Protocol.

    The Expendabros have assembled and set their sights on the forces of ruthless arms dealer Conrad Stonebanks in the forests of Eastern Europe.

    2014ActionIndieAdventureFreeDeck VerifiedSteam ↗

More from OxygenStudio

Other recommendable Steam games by OxygenStudio, ranked by review count so the studio's hits land first.

  1. Ground Parkour : First Mission

    WHY THIS

    Another title from OxygenStudio, the studio behind Smile Protocol. Shares Action and Casual with Smile Protocol.

    Ground parkour: First Mission, in short, you compete with yourself to reach the highest point on the track with different characters and different abilities in a construction site in the city. Each character has different abilities and you progress on this track full of obstacles. Enjoy!

    2023ActionStrategyAdventure4.99 USDSteam ↗
  2. Don't Leave

    WHY THIS

    Another title from OxygenStudio, the studio behind Smile Protocol. Shares Action and Indie with Smile Protocol.

    Welcome to a mysterious adventure where justice and the supernatural intertwine! Judge Harlan, in his old country cottage, faces a mysterious presence after his mother's sudden departure. Explore justice's limits in this extraordinary tale!

    2023ActionStrategyIndie6.99 USDSteam ↗
  3. Sinister Hospital

    WHY THIS

    Another title from OxygenStudio, the studio behind Smile Protocol. Shares Action and Indie with Smile Protocol.

    In the dark forests of Duskwood town, an abandoned hospital rises ominously. Despite its closure years ago, "Sinister Hospital" harbors terrifying secrets. The player enters to follow the trail of a group of lost children from the town. There lies a dark journey and quest for justice: Judge Harlan.

    2024ActionStrategyIndie7.99 USDSteam ↗
  4. Satan Moans

    WHY THIS

    Another title from OxygenStudio, the studio behind Smile Protocol. Shares Action and Indie with Smile Protocol.

    Are you ready for an adrenaline-fueled adventure with "Satan Moans"? In this horror-packed game, you'll explore the supernatural events surrounding a teenager returning home in the dead of night. Are you ready to dive into a suspenseful universe?

    2024ActionStrategyIndie5.99 USDSteam ↗
  5. Grouls

    WHY THIS

    Another title from OxygenStudio, the studio behind Smile Protocol. Shares Action and Indie with Smile Protocol.

    Uncover the chilling secrets of an abandoned house as Denis. Collect body parts, solve puzzles, and escape terrifying entities. Your choices shape your fate. Can you survive the nightmare?

    2024ActionStrategyIndie3.99 USDSteam ↗
  6. Night Market Simulator

    WHY THIS

    Another title from OxygenStudio, the studio behind Smile Protocol. Shares Indie and Simulation with Smile Protocol.

    Start your market from scratch, choose and price your own products. Every sale leads to new licenses, bigger spaces, and exciting new opportunities. Take full control of your warehouse layout, manage your staff wisely, and lay the foundation for your very own market empire!

    2025StrategyIndieSimulation11.99 USDSteam ↗
  7. Submeris

    WHY THIS

    Another title from OxygenStudio, the studio behind Smile Protocol. Shares Action and Indie with Smile Protocol.

    Submeris is an underwater mining adventure set beneath a mysterious island. Dig, upgrade your gear, survive dangerous depths, and uncover the legendary treasure hidden far below the ocean floor!

    2025ActionStrategyIndie4.99 USDSteam ↗
  8. Sweet Toys Simulator

    WHY THIS

    Another title from OxygenStudio, the studio behind Smile Protocol. Shares Indie and Simulation with Smile Protocol.

    Start your sweet store from scratch!. Pick and price your own toys and candies. Unlock new licenses with every sale, expand your shop, hire staff, and build the most colorful toy & candy empire ever! Manage shelves, set prices, and make your customers smile! 🧸🍭🎉

    2025StrategyIndieSimulation9.99 USDSteam ↗

Frequently asked about Smile Protocol

How much does Smile Protocol cost?
Smile Protocol is listed on Steam at 5.09 USD (current store price; Steam sales may reduce this temporarily).
What games are most similar to Smile Protocol?
Based on Steam play patterns and shared genres/tags, the games most often recommended alongside Smile Protocol are They Killed Your Cat, Bone Mayhem, GODSPEED.
Who developed Smile Protocol?
Smile Protocol was developed by OxygenStudio.

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 Smile Protocol.

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