Single-player games like Thunder Training Ground
Below are 8 single-player Steam games similar to Thunder Training Ground, 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 Thunder Training Ground page.
Ranked picks
- 1
Polygonal Conflict
Single-player alternative to Thunder Training Ground — playable solo, no multiplayer required. Shares Action and Indie with Thunder Training Ground.
Raise your army, crush the enemy defense, and seize air superiority in Polygonal Conflict. This is a massive-scale military sandbox where you directly control a vast arsenal of vehicles, command advanced AI, and personally smash through enemy lines across enormous battlefields
- 2
Winter War 1939
Single-player alternative to Thunder Training Ground — playable solo, no multiplayer required. Shares Action with Thunder Training Ground.
Epic World War 2 battles. Finland vs the Soviet Union.
- 3
NavalArt
Single-player alternative to Thunder Training Ground — playable solo, no multiplayer required. Shares Indie and Simulation with Thunder Training Ground.
Design your own warships, equip them with a variety of armament, and bring them out to the ocean!
- 4
Aircraft Evolution
Single-player alternative to Thunder Training Ground — playable solo, no multiplayer required. Shares Action and Indie with Thunder Training Ground.
Take part in aerial battles with warplanes from different eras — from World War I to the future. Drop bombs, upgrade your aircraft, and turn enemy bases into rubble in the explosive action game Aircraft Evolution!
- 5
Sprocket
Single-player alternative to Thunder Training Ground — playable solo, no multiplayer required. Shares Action and Indie with Thunder Training Ground.
Carefully balance mobility, firepower and armour in a dedicated tank designer. Then uncarefully put them to the test in a series of combat scenarios progressing through the ages of the tank. Here, your limit is what you can fit inside your hull and turret while still being able to move forwards.
- 6
M4 Tank Brigade
Single-player alternative to Thunder Training Ground — playable solo, no multiplayer required. Shares Action and Simulation with Thunder Training Ground.
M4 Tank Brigade is a WWII Tank Simulation game offering both Tactical and Strategic game play as the player controls 4 tanks in his own platoon and up to 3 other platoons at the same time! Single Player game with thousands of different missions and online Multiplayer combat.
- 7
Rise of Flight United
Single-player alternative to Thunder Training Ground — playable solo, no multiplayer required. Shares Simulation with Thunder Training Ground.
Pilot legendary aircraft of the early years of aviation, French Spad 13, German Albatros D.Va and Russian built Nieuport 17, in the free-to-play Rise of Flight United! This WWI aviation sim that has something for every flight-sim fan, from single player skirmish and career to multiplayer dogfights, but one thing is for certain, the...
- 8
Darkest Hour: A Hearts of Iron Game
Single-player alternative to Thunder Training Ground — playable solo, no multiplayer required.
Developed by a team of experienced modders from the Paradox forum, Darkest Hour is a stand-alone Hearts of Iron game. The game features a mixture of short and in-depth campaigns set across the darkest chapters of the 20th century. Play from the outbreak of the Great War up until the onset of the Cold War.