Single-player games like Radioactive
Below are 13 single-player Steam games similar to Radioactive, 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 Radioactive page.
Ranked picks
- 1
Rule The World CHESS
Single-player alternative to Radioactive — playable solo, no multiplayer required. Shares Strategy with Radioactive.
Rule the world with your army! Defeat Demons kingdom as well as Humans Kingdom! Use your magic and weapons to conquer the world! Experience chess in 3D fights with a lot of customizations! Create your own army!
- 2
WARNO
Single-player alternative to Radioactive — playable solo, no multiplayer required. Shares Strategy with Radioactive.
Realistic, immersive, breathtaking. WARNO is the ultimate World War III battle simulator from the masters of strategy, Eugen Systems. A Cold War turns decisively hot as you command hundreds of units on a beautiful and brutal battlefield. Outsmart, outfight, and lead your forces to total victory.
- 3
Unity of Command II
Single-player alternative to Radioactive — playable solo, no multiplayer required. Shares Strategy with Radioactive.
Unity of Command II is the sequel to one of the most critically acclaimed strategy games of all time; a game critics called 'the perfect gateway' into computer war games.
- 4
Shadow Empire
Single-player alternative to Radioactive — playable solo, no multiplayer required. Shares Strategy with Radioactive.
Shadow Empire is a deep turn-based 4X wargame with a unique blend of military focus, procedurally generated content and role-playing features. Players take the seat of the supreme ruler of a small nation, with the goal of reconquering a devastated planet.
- 5
SGS Korean War
Single-player alternative to Radioactive — playable solo, no multiplayer required. Shares Strategy with Radioactive.
The first intense conflict of the Cold War, this war is very often forgotten, its very rapid and dynamic but unknown aspect obliterated by months of stagnation following the first year of operations in Korea. Can you make it remembered?
- 6
SGS NATO's Nightmare
Single-player alternative to Radioactive — playable solo, no multiplayer required. Shares Strategy with Radioactive.
What if the Warsaw Pact had attacked NATO in the mid-1980s. Or the other way around? Study this titanic conflict, within its most emblematic theater, Germany and Central Europe. Will you be able to achieve your goals without escalating into an uncontrollable nuclear conflict?
- 7
Panzer Corps 2
Single-player alternative to Radioactive — playable solo, no multiplayer required. Shares Strategy with Radioactive.
Panzer Corps 2 is the ultimate Second World War strategy game! Enjoy the time-proven gameplay formula which has been appreciated by millions of players over the years, brought to a whole new level of refinement up to the latest technical standards.
- 8
Wargroove
Single-player alternative to Radioactive — playable solo, no multiplayer required. Shares Strategy with Radioactive.
Take to the battlefield with Wargroove, a strategy game for up to 4 players! Choose your Commander and wage turn-based war on battling factions. Design and share maps, cut-scenes and campaigns with easy-to-use editors and in-depth customization tools!
- 9
Flatspace IIk
Single-player alternative to Radioactive — playable solo, no multiplayer required.
Flatspace IIk is a top-down space trading game with the emphasis on free exploration. In Flatspace, you choose your profession and are given a small spaceship with a scattering of random weapons, then you are free to earn a living, explore, hunt, trade, grow; upgrading your ship and equipment.
- 10
Future Snooker
Single-player alternative to Radioactive — playable solo, no multiplayer required. Shares Strategy with Radioactive.
Future Snooker is a futuristic snooker game. Players take turns to shoot a cue-ball on a circular snooker table. Score points by potting red then colour, just as in normal snooker. A compelling mix of tactics and skill for one or two players with a selection of computer opponents.
- 11
Taskforce: The Mutants of October Morgane
Single-player alternative to Radioactive — playable solo, no multiplayer required. Shares Strategy with Radioactive.
Taskforce is a tactical, turn based game in which you control a small group of elite soldiers in a series of sci-fi themed missions. Mission objectives might include rescuing hostages, blowing up targets, stealing documents or other military activities.
- 12
Gunstorm
Single-player alternative to Radioactive — playable solo, no multiplayer required.
Gunstorm is a space shooter loaded with playability. Wave after wave of alien craft attack your agile ship. Use the mouse to control your ship at the speed of thought in a perfectly balanced game that starts easy and gradually gets more difficult.
- 13
Gunstorm II
Single-player alternative to Radioactive — playable solo, no multiplayer required.
Gunstorm II is an space-shooter with bags of playability, character, pretty weapons, and lots of fun. The plot-based action takes you to five different worlds, in a perfectly balanced game that starts easy and gradually gets more difficult.