Single-player games like Operation Hardcore
Below are 13 single-player Steam games similar to Operation Hardcore, 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 Operation Hardcore page.
Ranked picks
- 1
Warhammer 40,000: Shootas, Blood & Teef
Single-player alternative to Operation Hardcore — playable solo, no multiplayer required. Shares Action and Adventure with Operation Hardcore.
From the developers of the Guns, Gore and Cannoli franchise comes a new 2D run & gun platformer: Warhammer 40,000: Shootas, Blood & TEEF! Spearhead an Ork invasion, destroy the hive city and kill your warboss! ‘Ere we go!
- 2
CometStriker DX
Single-player alternative to Operation Hardcore — playable solo, no multiplayer required. Shares Action and Indie with Operation Hardcore.
CometStriker DX is a fast-paced arcade-style shooter where you boost through danger and blast everything in your way!
- 3
Round 99
Single-player alternative to Operation Hardcore — playable solo, no multiplayer required. Shares Action and Indie with Operation Hardcore.
Round 99 is a fast-paced shooter combined with a platformer that focuses on jumping around colorful environments and making a variety of enemies explode! Jump around 12 levels and bombard nearly 20 different enemies and bosses alone or with friends.
- 4
Gunboat God
Single-player alternative to Operation Hardcore — playable solo, no multiplayer required. Shares Action and Indie with Operation Hardcore.
Become the all-powerful Gunboat God in this fluid shoot 'em up. Carve the waves as you stylishly fight hordes of monsters in hundreds of quick-fire missions. Transform your Gunboat and upgrade your weapons, skills and abilities to take on giant, challenging, multi-stage bosses!
- 5
Beekyr Reloaded
Single-player alternative to Operation Hardcore — playable solo, no multiplayer required. Shares Action and Indie with Operation Hardcore.
The giant hornets have destroyed your hive and taken the pollen. Fight the swarms alone or with a friend and destroy the dangerous hornet queen! The insect world is very dangerous but... what are you waiting for to get your revenge?
- 6
Nex Machina
Single-player alternative to Operation Hardcore — playable solo, no multiplayer required. Shares Action and Indie with Operation Hardcore.
Nex Machina is an intense arcade style twin-stick shooter from Housemarque. Taking hints from both Robotron and Smash TV, Nex Machina focuses on pure action, voxel destruction and competition in the distant, cablepunk themed future.
- 7
Project X: Light Years
Single-player alternative to Operation Hardcore — playable solo, no multiplayer required. Shares Action and Indie with Operation Hardcore.
The official Project X sequel ✨ Back after 30 years!🎮 A demanding, skill-based experience that rewards patience and mastery. Not every game is for everyone — this one is for players who love a real, fair challenge. Try the demo and see if you’re up for it. Failure teaches. Mastery rewards.
- 8
Assault Android Cactus+
Single-player alternative to Operation Hardcore — playable solo, no multiplayer required. Shares Action and Indie with Operation Hardcore.
Assault Android Cactus is an intense arcade style twin stick shooter - pick from one of nine unique synthetic heroines and blast your way through overwhelming robots hordes to save the ship from its own workforce. Supports single player and local co-op game modes.
- 9
TOXICANT
Single-player alternative to Operation Hardcore — playable solo, no multiplayer required. Shares Action and Indie with Operation Hardcore.
TOXICANT offers a sinister twist on the survival horror genre, featuring randomized levels and roguelike elements.
- 10
Cosmic Ray
Single-player alternative to Operation Hardcore — playable solo, no multiplayer required. Shares Action and Indie with Operation Hardcore.
A game about exploring space in search of hospitable planets for colonization. Casual gameplay and short rounds make it a great option for killing a few minutes.
- 11
Brainmelter Deluxe
Single-player alternative to Operation Hardcore — playable solo, no multiplayer required. Shares Action and Indie with Operation Hardcore.
Melt your brain with this twisted take on the platform genre!
- 12
Super Rocket Ride
Single-player alternative to Operation Hardcore — playable solo, no multiplayer required. Shares Action and Indie with Operation Hardcore.
Hardcore retro action. Rocket go boom!
- 13
Astral Flux
Single-player alternative to Operation Hardcore — playable solo, no multiplayer required. Shares Action and Indie with Operation Hardcore.
Astral Flux is an action-platformer with roguelite elements where each run is different. Traverse hostile alien planets, discover dark secrets, and face powerful foes in combat.