IMHO.

Single-player games like Dr. Professor Scientist's Weapons Testing Facility

Below are 9 single-player Steam games similar to Dr. Professor Scientist's Weapons Testing Facility, ranked by player overlap. Every pick carries Steam's Single-player category, so multiplayer-only titles or always-online games don't sneak in. imho.run pulls the category data from Steam directly — Single-player here matches what the store labels.

Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like Dr. Professor Scientist's Weapons Testing Facility page.

Ranked picks

  1. 1
    Escape from Demon Island — Steam game cover

    Escape from Demon Island

    Single-player alternative to Dr. Professor Scientist's Weapons Testing Facility — playable solo, no multiplayer required. Shares Strategy and Indie with Dr. Professor Scientist's Weapons Testing Facility.

    In the lost island of Alcatraz, try hard to survive. You can use a variety of weapons and skills to avoid and eliminate wild beasts and monsters, and finally eliminate the abyssal demons and escape. Be careful, monsters are different during the day and at night! Enjoy yourself!

    2023StrategyIndie1.99 USDSingle-playerSimilar games →
  2. 2
    miniBONG — Steam game cover

    miniBONG

    Single-player alternative to Dr. Professor Scientist's Weapons Testing Facility — playable solo, no multiplayer required. Shares Strategy and Indie with Dr. Professor Scientist's Weapons Testing Facility.

    "miniBONG" is a lightweight rogue-like game that focuses on dress-up DIY and idle gameplay, while incorporating elements of combat, character development, and strategy.. You can feel the charm of dressing up and fighting at the same time.

    2023StrategyIndieRPG9.99 USDDeck PlayableSingle-playerSimilar games →
  3. 3
    DRAG IT — Steam game cover

    DRAG IT

    Single-player alternative to Dr. Professor Scientist's Weapons Testing Facility — playable solo, no multiplayer required. Shares Indie and Casual with Dr. Professor Scientist's Weapons Testing Facility.

    This is a game where you swing your weapon with the mouse to attack! You must rely on inertia and momentum to master the art of swinging. The screen is filled with monsters that also act as bullet hell; be careful to avoid them.

    2025IndieCasual0.99 USDSingle-playerSimilar games →
  4. 4
    Null Vector — Steam game cover

    Null Vector

    Single-player alternative to Dr. Professor Scientist's Weapons Testing Facility — playable solo, no multiplayer required. Shares Indie with Dr. Professor Scientist's Weapons Testing Facility.

    Trade. Gamble. Fight! Test your arcade chops in Null Vector, a twin-stick shooter rogue-lite. Discover and experiment with thousands of weapon combinations, take strategic advantage of machines to trade and gamble for new ship parts, and unleash your own bullet hell upon the Final Boss!

    2018ActionIndie4.99 USDSingle-playerSimilar games →
  5. 5
    Sector Six — Steam game cover

    Sector Six

    Single-player alternative to Dr. Professor Scientist's Weapons Testing Facility — playable solo, no multiplayer required. Shares Indie with Dr. Professor Scientist's Weapons Testing Facility.

    Sector Six is a side-scrolling, sci-fi shooter with a silhouette aesthetic, procedural loot, extensive customization, and story missions.

    2018ActionIndieRPG8.00 USDDeck PlayableSingle-playerSimilar games →
  6. 6
    Arms Evolution: ZOMBIE DESTROYER — Steam game cover

    Arms Evolution: ZOMBIE DESTROYER

    Single-player alternative to Dr. Professor Scientist's Weapons Testing Facility — playable solo, no multiplayer required. Shares Strategy and Indie with Dr. Professor Scientist's Weapons Testing Facility.

    "Arms Evolution: ZOMBIE DESTROYER" is a unique Roguelite tower defense game. You will slaughter thousands of zombies in the game and enhance your weapon towers through build character in the RPG way. and , the game also offers an idle mode, so you can enjoy building weapons anytime and anywhere.

    2023StrategyIndieCasual5.99 USDDeck PlayableSingle-playerSimilar games →
  7. 7
    Reality Break — Steam game cover

    Reality Break

    Single-player alternative to Dr. Professor Scientist's Weapons Testing Facility — playable solo, no multiplayer required. Shares Indie with Dr. Professor Scientist's Weapons Testing Facility.

    Rewrite the universe! Break reality to change your fate, and use your powers to stop sinister forces from altering existence itself. Discover the origin of your new abilities in a fast-paced ARPG Loot Collection Roguelite where you will bend, break, and change the laws of the universe!

    2025ActionIndieAdventure24.99 USDDeck VerifiedSingle-playerSimilar games →
  8. 8
    The Riftbreaker — Steam game cover

    The Riftbreaker

    Single-player alternative to Dr. Professor Scientist's Weapons Testing Facility — playable solo, no multiplayer required. Shares Strategy and Indie with Dr. Professor Scientist's Weapons Testing Facility.

    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.

    2021ActionStrategyIndie11.99 USDDeck PlayableSingle-playerSimilar games →
  9. 9
    Clockwork Survivors — Steam game cover

    Clockwork Survivors

    Single-player alternative to Dr. Professor Scientist's Weapons Testing Facility — playable solo, no multiplayer required.

    Don't hold forward, don't press fire, but focus on the vertical in this autorunning reverse bullet hell roguelike. Master the level layout by lapping the same short section several times while you gather steam for your hot air balloon companion. Make the balloon & yourself happy.

    2023Action5.99 USDSingle-playerSimilar games →
Single-Player Games Like Dr. Professor Scientist's Weapons Testing Facility · imho.run