Single-player games like Invaders from Dimension X
Below are 13 single-player Steam games similar to Invaders from Dimension X, 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 Invaders from Dimension X page.
Ranked picks
- 1
Underwater Wars
Single-player alternative to Invaders from Dimension X — playable solo, no multiplayer required. Shares Strategy and Indie with Invaders from Dimension X.
Underwater Wars is a tactical turn-based strategy game that takes place in the depths of the ocean. Two powerful factions of people are fighting a war for territory and resources, but everything changes when mysterious "Aliens" enter the conflict.
- 2
Warhammer 40,000: Armageddon (Classic)
Single-player alternative to Invaders from Dimension X — playable solo, no multiplayer required. Shares Strategy with Invaders from Dimension X.
In this hex-based, turn-based strategy game, players will lead the Imperial forces of the Armageddon Steel Legion and Space Marines from a variety of Chapters against the Ork invasion through over 30 scenarios, on the hostile terrain of the planet and its gigantic Hive Cities.
- 3
Fantasy General II
Single-player alternative to Invaders from Dimension X — playable solo, no multiplayer required. Shares Strategy with Invaders from Dimension X.
The fantasy wargaming classic is back! Lead powerful heroes and mighty armies into battle in this critically acclaimed turn-based strategy milestone. Level up and train your units and guide them through a gripping story campaign to decide the fate of a world on the brink of destruction.
- 4
Field of Glory II
Single-player alternative to Invaders from Dimension X — playable solo, no multiplayer required. Shares Strategy with Invaders from Dimension X.
Field of Glory II is a turn-based tactical game set during the Rise of Rome from 280 BC to 25 BC.
- 5
Xenonauts
Single-player alternative to Invaders from Dimension X — playable solo, no multiplayer required. Shares Strategy and Indie with Invaders from Dimension X.
Xenonauts is a strategy game in which you control a multi-national military organisation defending a Cold War-era Earth from alien invasion, using small squads of persistent soldiers to eliminate the extraterrestrials and recover their technology in turn-based ground combat.
- 6
Warhammer 40,000: Gladius - Relics of War
Single-player alternative to Invaders from Dimension X — playable solo, no multiplayer required. Shares Strategy with Invaders from Dimension X.
Warhammer 40,000: Gladius – Relics of War brings you to a world of terror and violence. Four factions will engage in a brutal war for dominance over the planet’s resources. In the first turn-based 4X strategy game set in Warhammer 40,000 you will lead one of four unique factions.
- 7
Sid Meier's Civilization®: Beyond Earth™
Single-player alternative to Invaders from Dimension X — playable solo, no multiplayer required. Shares Strategy with Invaders from Dimension X.
Sid Meier’s Civilization: Beyond Earth is a new science-fiction-themed entry into the award winning Civilization series. As part of an expedition sent to find a home beyond Earth, lead your people into a new frontier, explore and colonize an alien planet and create a new civilization in space.
- 8
逐鹿
Single-player alternative to Invaders from Dimension X — playable solo, no multiplayer required. Shares Strategy and Indie with Invaders from Dimension X.
A stand-alone turn-based war chess game with the theme of Chinese history. The core gameplay is territorial competition, and diplomacy, construction, combat and other gameplay will also revolve around territorial competition.
- 9
Valor & Victory
Single-player alternative to Invaders from Dimension X — playable solo, no multiplayer required. Shares Strategy and Indie with Invaders from Dimension X.
Valor & Victory is a fast-playing, easy to learn World War II squad-level game system. Based on the original Valor & Victory board game, the digital edition provides you with an accessible and deep challenge, developed for classic tabletop game lovers.
- 10
Kursk - Battle at Prochorovka
Single-player alternative to Invaders from Dimension X — playable solo, no multiplayer required. Shares Strategy and Indie with Invaders from Dimension X.
A fan of WW2 strategy war games? Like to think about your next move rather than having quick reaction times? Battle Series Eastern Front - Kursk - Battle at Prochorovka is the game for you. Battle Series Eastern Front - Kursk - Battle at Prochorovka, covers one of largest single tank battle in the history of warfare.
- 11
Battle For Korsun
Single-player alternative to Invaders from Dimension X — playable solo, no multiplayer required. Shares Strategy and Indie with Invaders from Dimension X.
January 1944. The German Army had their last toehold on the Dneiper River. The Soviet player must coordinate the offensives of his Fronts to encircle the Germans quickly, before the Germans powerful reinforcements arrive.
- 12
Battle for Iwo Jima
Single-player alternative to Invaders from Dimension X — playable solo, no multiplayer required. Shares Strategy with Invaders from Dimension X.
Battle for Iwo Jima simulates the WWII Invasion and desperate fighting for the island that took place in 1945. Take command of the US Marines, manage your tanks, infantry, and HQ communication in a day and night furious battle against the Japanese garrison.
- 13
Krim: The War in the Crimea 1941-42
Single-player alternative to Invaders from Dimension X — playable solo, no multiplayer required. Shares Strategy with Invaders from Dimension X.
KRIM: The War in the Crimea 1941-42 is an operational/strategic simulation of the German 11th Army’s operations in the Crimean Peninsula from late October 1941 through 4 July 1942.