Quantum Theory

🎮 Games like Quantum Theory

Enjoy the Sci-Fi, Multiplayer, Single-Player gameplay in Quantum Theory? These 24 games are matched by gameplay features, genre, and developer, most similar first. Each one shows "what's similar".

1. 1

   Aliens: Fireteam Elite 2

   · 2026

   ✔ Also Sci-Fi, Multiplayer, Single-Player

   This is a fight for survival. Xenomorphs swarm in overwhelming numbers. Every room could b…

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2. 2

   Star Wars: Demolition

   · 2000

   ✔ Also Sci-Fi, Multiplayer, Single-Player

   Star Wars: Demolition is a vehicular combat game set in the Star Wars universe created by …

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3. 3

   Buck Bumble

   · 1998

   ✔ Also Sci-Fi, Multiplayer, Single-Player

   A chemical spill somewhere in rural England has mutated an army of bees into killer insect…

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4. 4

   Star Strike

   · 1981

   ✔ Also Sci-Fi, Single-Player

   Launching from repair bay 28 of the Galatea, you guide your Blue Fighter Wing through the …

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5. 5

   Fracture

   · 2008

   ✔ Also Sci-Fi, Multiplayer, Single-Player

   Set in 2161, global warming has caused the U.S. to split into two. Fracture tells the stor…

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6. 6

   Duke Nukem: Manhattan Project

   · 2002

   ✔ Also Sci-Fi, Single-Player

   Duke Nukem takes his Mighty Boot to the Big Apple. Using GLOPP (Gluon Liquid Omega-Phased …

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7. 7

   Atomic Robo-Kid

   · 1988

   ✔ Also Sci-Fi, Single-Player

   Atomic Robo-Kid is a horizontally scrolling shooter released in arcades by UPL. The player…

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8. 8

   Earth Defense Force 2017 Portable

   · 2012

   ✔ Also Sci-Fi, Single-Player

   The completely remastered Earth Defense Force 2017 Portable features seven new levels and …

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9. 9

   Astro Fighter

   · 1979

   ✔ Also Sci-Fi, Single-Player

   The game of Astro Fighter consists of 4 waves and a refueling stage, which are then repeat…

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10. 10

    Outcast 1.1

    · 2014

    ✔ Also Sci-Fi, Single-Player

    Outcast 1.1 is an enhanced version of the action-adventure game developed in 1999 by Appea…

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11. 11

    Star Wars Trilogy Arcade

    · 1998

    ✔ Also Sci-Fi, Single-Player

    Star Wars Trilogy Arcade is an arcade game first released in 1998. The game is a 3-D rail …

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12. 12

    Solaris

    · 1986

    ✔ Also Sci-Fi, Single-Player

    Solaris is a space combat game for the Atari 2600 published in 1986 by Atari Corporation. …

    ⚔️ Compare with Quantum Theo…
13. 13

    Contra: Legacy of War

    · 1996

    ✔ Also Sci-Fi, Single-Player

    Contra: Legacy of War is a 3D action game produced by Konami and developed by Appaloosa In…

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14. 14

    One

    · 1997

    ✔ Also Sci-Fi, Single-Player

    Flip, climb, hang, slide, blast, and fight through five multi-level 3D worlds. Rage up wit…

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15. 15

    Gene Rain

    · 2018

    ✔ Also Sci-Fi, Single-Player

    Gene Rain is a next-gen 3D third person shooter game. The story is set in a futuristic wor…

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16. 16

    Broken Pieces

    · 2022

    ✔ Also Sci-Fi, Single-Player

    Broken Pieces is a psychological thriller taking place in a french coastal village somehow…

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17. 17

    Decimated

    ✔ Also Sci-Fi, Multiplayer, Single-Player

    Decimated is a 3rd person multiplayer online survival RPG. Fight against or team up with o…

    ⚔️ Compare with Quantum Theo…
18. 18

    Mass Effect 2

    · 2021

    ✔ Also Sci-Fi, Single-Player

    A remaster of the original Mass Effect 2 included in the Mass Effect: Legendary Edition bu…

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19. 19

    The Forever Winter

    · 2024

    ✔ Also Sci-Fi, Multiplayer, Single-Player

    The Forever Winter is a co-op tactical survival horror shooter where you and your squad mu…

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20. 20

    The Thing: Remastered

    · 2024

    ✔ Also Sci-Fi, Single-Player

    Set after the events of the 1982 John Carpenter movie, The Thing: Remastered is a squad ba…

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21. 21

    Terminull Brigade

    · 2025

    ✔ Also Sci-Fi, Multiplayer, Single-Player

    Rise in the virtual rebellion to free the Nullverse in this action-packed roguelike game t…

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22. 22

    Romeo is a Dead Man

    · 2026

    ✔ Also Sci-Fi, Single-Player

    Latest ultra-violent sci-fi action title from Grasshopper Manufacture and Suda51. Step int…

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23. 23

    Fear Effect 2: Retro Helix

    · 2026

    ✔ Also Sci-Fi, Single-Player

    Return to 2048 Hong Kong in the groundbreaking prequel that defined style and mature story…

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24. 24

    Menace

    · 2026

    ✔ Also Sci-Fi, Single-Player

    Lead a strike force against an alien threat in this turn-based tactical RPG from the devel…

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