IMHO.

Games like Defentron

If Defentron is your kind of game, the closest matches are High Speed Cataclysm, Hello Space and Missile Dancer 2 — 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 →

About Defentron: Get ready and battle for the ultimate upgrade. DEFENTRON, the retro-futurist computer system is trying to safeguard itself from malicious viruses that seek to control its core.

2020StrategyIndieSimulation9.99 USDWindowsby Planetfall Studios
Defentron — Steam game cover

Players who liked Defentron also play

Steam players who put hours into Defentron 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. High Speed Cataclysm

    WHY THIS

    Top pick for Defentron fans by collaborative filtering across millions of Steam libraries. Shares Indie with Defentron.

    High Speed Cataclysm is the most advanced and frenetic 2D action shooter where you will have to destroy thousands of enemies in order to save the galaxy.

    2020ActionIndie5.99 USDSteam ↗
  2. Hello Space

    WHY THIS

    Second-strongest match for Defentron fans by collaborative filtering across millions of Steam libraries. Shares Indie with Defentron.

    Dive into a 2D action game where you control a spaceship, defeat enemies and overcome deadly traps. Extend your arsenal by collecting new weapons and technologies for your ship that you will need to conquer four different dungeon-like worlds, all connected by an open space full of surprises.

    2026ActionIndieAdventureSteam ↗
  3. Missile Dancer 2

    WHY THIS

    Third-strongest match for Defentron fans by collaborative filtering across millions of Steam libraries. Shares Indie with Defentron.

    Missile Dancer 2 is a new sprite scaler shmup that combines rail shooter and caravan STG.

    2024ActionIndieCasual14.99 USDSteam ↗
  4. Space Warpster

    WHY THIS

    Ranked #4 for Defentron fans by collaborative filtering across millions of Steam libraries. Shares Indie with Defentron.

    A fast-paced retro arcade shooter inspired by classic 1980s side-scrolling space combat. Weave through organic obstacles, survive relentless enemy waves, and defeat powerful end-level bosses in a pure, skill-driven singleplayer experience.

    2026ActionIndie4.24 USDSteam ↗
  5. Homing Instinct

    WHY THIS

    Ranked #5 for Defentron fans by collaborative filtering across millions of Steam libraries. Shares Indie and Simulation with Defentron.

    Please send a completely intoxicated person home safely.

    2024IndieSimulationCasual4.99 USDSteam ↗
  6. Grid Ranger

    WHY THIS

    Ranked #6 for Defentron fans by collaborative filtering across millions of Steam libraries. Shares Indie with Defentron.

    A shortform heart-pounding 3D shmuplike. Level up your mouse dexterity and see what lies beyond the grid...

    2025ActionIndieRacing3.99 USDSteam ↗
  7. Cat Girl Without Salad: Amuse-Bouche

    WHY THIS

    Ranked #7 for Defentron fans by collaborative filtering across millions of Steam libraries. Shares Strategy and Indie with Defentron.

    Interstellar mayhem! A bounty-hunting cat girl! Funktasmical genre-spanning action! This one has it all — no foolin'!

    2025ActionSportsStrategy7.99 USDSteam ↗
  8. Senli 307

    WHY THIS

    Ranked #8 for Defentron fans by collaborative filtering across millions of Steam libraries. Shares Indie with Defentron.

    Senli 307 is a top-down shooter where you can turn, accelerate, and decelerate using only WASD (or arrow keys), and repeatedly search for and destroy enemies.

    2022ActionIndieCasual2.99 USDSteam ↗

Cheaper alternatives

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

  1. Garry's Mod

    WHY THIS

    Priced ~50% under Defentron on Steam right now. Shares Indie and Simulation with Defentron.

    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.

    2006IndieSimulationCasual4.99 USDDeck PlayableSteam ↗
  2. Vampire Survivors

    WHY THIS

    Priced ~50% under Defentron on Steam right now. Shares Indie with Defentron.

    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!

    2022ActionIndieRPG4.99 USDDeck VerifiedSteam ↗
  3. Cookie Clicker

    WHY THIS

    Priced ~50% under Defentron on Steam right now. Shares Strategy and Indie with Defentron.

    An idle game about making cookies! Originally released in 2013 on the web, and actively developed since then. This is the official version for Steam.

    2021StrategyIndieSimulation4.99 USDDeck PlayableSteam ↗
  4. WEBFISHING

    WHY THIS

    Priced ~50% under Defentron on Steam right now. Shares Indie with Defentron.

    WEBFISHING a multiplayer chatroom-focused fishing game! Relax and fish (on the web!)

    2024IndieMassively MultiplayerCasual4.99 USDSteam ↗
  5. POSTAL 2

    WHY THIS

    Priced ~90% under Defentron on Steam right now. Shares Indie with Defentron.

    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 ↗
  6. Plants vs. Zombies GOTY Edition

    WHY THIS

    Priced ~50% under Defentron on Steam right now. Shares Strategy with Defentron.

    Zombies are invading your home, and the only defense is your arsenal of plants! Armed with an alien nursery-worth of zombie-zapping plants like peashooters and cherry bombs, you'll need to think fast and plant faster to stop dozens of types of zombies dead in their tracks.

    2009Strategy4.99 USDDeck PlayableSteam ↗
  7. Buckshot Roulette

    WHY THIS

    Priced ~70% under Defentron on Steam right now. Shares Indie and Simulation with Defentron.

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

    2024ActionIndieSimulation2.99 USDDeck PlayableSteam ↗
  8. Brotato

    WHY THIS

    Priced ~50% under Defentron on Steam right now. Shares Indie with Defentron.

    Brotato is a top-down arena shooter roguelite where you play a potato wielding up to 6 weapons at a time to fight off hordes of aliens. Choose from a variety of traits and items to create unique builds and survive until help arrives.

    2023ActionIndieRPG4.99 USDDeck VerifiedSteam ↗

Free alternatives

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

  1. Ultimate Custom Night

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie with Defentron.

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

    2018ActionIndieFree To PlayFreeSteam ↗
  2. STRAFTAT

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it.

    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 ↗
  3. missed messages.

    WHY THIS

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

    ‘goth gf’s iPhone’ airdrops you - accept or decline? A love/horror story about life, death, & memes.

    2019IndieSimulationFree To PlayFreeDeck PlayableSteam ↗
  4. Magic Archery

    WHY THIS

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

    Train a commoner to become the greatest archer in this short incremental game! Increase your stats, gather wealth from quests, buy upgrades, and infuse your arrows with magic.

    2024IndieSimulationRPGFreeDeck PlayableSteam ↗
  5. Disfigure

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie with Defentron.

    Disfigure is a grim-dark action rogue-like where you battle relentless hordes of monsters lurking in the shadows. Unlock powerful weapons, craft god-like builds with hundreds of upgrades, slay colossal bosses, and push your limits in intense 20–30 minute survival runs!

    2023ActionIndieFreeDeck PlayableSteam ↗
  6. 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!

    2016Free To PlayFreeSteam ↗
  7. Cinderella Phenomenon - Otome/Visual Novel

    WHY THIS

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

    The Fairytale Curse was only the beginning...

    2017IndieSimulationFree To PlayFreeSteam ↗
  8. Landfall Archives

    WHY THIS

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

    Break into the Landfall Archives to steal and play previously unreleased games, demos, interactive slide shows, and even an unreleased version of Totally Accurate Battle Simulator from 2017!

    2023ActionStrategyIndieFreeSteam ↗

Frequently asked about Defentron

How much does Defentron cost?
Defentron is listed on Steam at 9.99 USD (current store price; Steam sales may reduce this temporarily).
What games are most similar to Defentron?
Based on Steam play patterns and shared genres/tags, the games most often recommended alongside Defentron are High Speed Cataclysm, Hello Space, Missile Dancer 2.
Who developed Defentron?
Defentron was developed by Planetfall Studios and published by Zerouno 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 Defentron.

For library-aware picks tuned to your specific taste, sign in with Steam on the home page.

24 Games Like Defentron — Ranked for 2026 · imho.run