Single-player games like Invention 3
Below are 16 single-player Steam games similar to Invention 3, 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 Invention 3 page.
Ranked picks
- 1
Dawn of Horror
Single-player alternative to Invention 3 — playable solo, no multiplayer required. Shares Action and Indie with Invention 3.
Dawn of Horror is a high-intensity Action Horror FPS set in the decaying urban sprawl of Cygnus City. Following the collapse of civilization into a digital Dark Age, step into the role of Kage—a survivor seeking vengeance against hordes of Cyber-Zombies and bio-mechanical monstrosities.
- 2
Project RIP
Single-player alternative to Invention 3 — playable solo, no multiplayer required. Shares Action and Indie with Invention 3.
Welcome to Project R.I.P. , control AI driven Agents in the battle against hordes of demons. Show your skills on the battlefield and on Global Leaderboards in this Singleplayer Horror Survival First Person Horde Shooter.
- 3
Contagion VR: Outbreak
Single-player alternative to Invention 3 — playable solo, no multiplayer required. Shares Action and Indie with Invention 3.
Contagion VR: Outbreak will immerse you into the middle of a zombie apocalypse. Relive stories of the survivors in the Single Player campaign, take your time in Free Roam, or check out the Firing Range!
- 4
Left 4 Dead 2
Single-player alternative to Invention 3 — playable solo, no multiplayer required. Shares Action with Invention 3.
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.
- 5
Back 4 Blood
Single-player alternative to Invention 3 — playable solo, no multiplayer required. Shares Action with Invention 3.
Back 4 Blood is a thrilling cooperative first-person shooter from the creators of the critically acclaimed Left 4 Dead franchise. Experience the intense 4 player co-op narrative campaign, competitive multiplayer as human or Ridden, and frenetic gameplay that keeps you in the action.
- 6
Killing Floor 2
Single-player alternative to Invention 3 — playable solo, no multiplayer required. Shares Action with Invention 3.
In KILLING FLOOR 2, players descend into continental Europe after it has been overrun by horrific, murderous clones called Zeds that were created by rogue elements of the Horzine Corporation. 6-player Co-Op & 12-player VS Zed-slaughtering mayhem.
- 7
Survival Zombies The Inverted Evolution
Single-player alternative to Invention 3 — playable solo, no multiplayer required. Shares Action and Indie with Invention 3.
Survival Zombies is a bloody chaotic survival first person shooter that pits heavily armed players against humanity's greatest fear - hordes of undead.
- 8
Killing Floor
Single-player alternative to Invention 3 — playable solo, no multiplayer required. Shares Action with Invention 3.
6-player co-op survival horror at its finest! Free updates, free special events and a ridiculous amount of fun!
- 9
Virus Z
Single-player alternative to Invention 3 — playable solo, no multiplayer required. Shares Action and Indie with Invention 3.
Virus Z is a 3D zombie shooter with a third-person view. You must wade through crowds of the walking dead with your partner. Zombies are very fast here, and you will struggle to get away from them, so you must rely only on your reflexes and accuracy. Also, from out of nowhere, a huge monster-mutant may appear at any time
- 10
Mission Of Hero
Single-player alternative to Invention 3 — playable solo, no multiplayer required. Shares Action and Indie with Invention 3.
You are a soldier in an elite, special squad that was sent to carry out a secret operation to steal information from the terrorists' base.
- 11
Zombie Murder
Single-player alternative to Invention 3 — playable solo, no multiplayer required. Shares Action and Indie with Invention 3.
Zombie Murder - A brutal shooter with good graphics, special effects and hard-edged music. A large arsenal of weapons, crowds of monsters, seas of blood and explosions.
- 12
Zombie Murder Hell Arrives
Single-player alternative to Invention 3 — playable solo, no multiplayer required. Shares Action and Indie with Invention 3.
Command two robots with their own shooting methods. Choose which one to control, using different parameters and super attacks. Shooting monsters will help you upgrade your robot of choice. Face a giant boss at the end of each scene!
- 13
Turtle Lu
Single-player alternative to Invention 3 — playable solo, no multiplayer required. Shares Action and Indie with Invention 3.
Turtle Lu is an old-school Action-Adventure game, Explore immense 2D Zones.
- 14
Old Factory
Single-player alternative to Invention 3 — playable solo, no multiplayer required. Shares Action and Indie with Invention 3.
The game is either a first person or third person. To help you win, look for weapon in abandoned buildings, collect ammunition and first aid kits, hide and try to hold out until your last breath, but be wise, you have no friends here, so shoot everything that moves.
- 15
Secret Laboratory
Single-player alternative to Invention 3 — playable solo, no multiplayer required. Shares Action and Indie with Invention 3.
Secret Laboratory is a shooter with multiple options. You can play first person or third person, in a very fast and easy way to change.
- 16
Tower Defense Sudden Attack
Single-player alternative to Invention 3 — playable solo, no multiplayer required. Shares Indie with Invention 3.
Tower Defense Sudden Attack is a strategy game set in a military base seized by many terrorists and now is under attack.