Single-player games like Orbi Universo II
Below are 11 single-player Steam games similar to Orbi Universo II, 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 Orbi Universo II page.
Ranked picks
- 1

Orbi Universo
Single-player alternative to Orbi Universo II — playable solo, no multiplayer required. Shares Strategy and Indie with Orbi Universo II.
Play as the leader of a civilization, make it prosper and stand the test of time. Orbi Universo is a strategy/simulation game in which you manage your civilization with an abstract and complex node system and you make your society evolve through different periods, from cavemen to the Modern Era.
- 2

Victoria II
Single-player alternative to Orbi Universo II — playable solo, no multiplayer required. Shares Strategy with Orbi Universo II.
Carefully guide your nation from the era of absolute monarchies in the early 19th century, through expansion and colonization, to finally become a truly great power by the dawn of the 20th century. Victoria II is a grand strategy game played during the colonial era of the 19th century, where the player takes control of a country, guiding...
- 3

Solar Nations 2
Single-player alternative to Orbi Universo II — playable solo, no multiplayer required. Shares Strategy and Simulation with Orbi Universo II.
In this Grand Strategy game, you take control of the Solar System's Great Powers in 2092 and weather the storm of change as you navigate the uncertain waters of the future. Control the greatest military forces in the world and wage wars on an epic scale: outer space is yours to conquer!
- 4

Trade Conquest
Single-player alternative to Orbi Universo II — playable solo, no multiplayer required. Shares Strategy and Indie with Orbi Universo II.
Rise from a cunning strategist to a powerful ruler. Master economic warfare, manipulate global events, and build industries or armies to conquer the world. Every decision in this modern Grand Strategy game shapes your ascent to power—will you rise through wealth or force?
- 5

Terra Invicta
Single-player alternative to Orbi Universo II — playable solo, no multiplayer required. Shares Strategy and Simulation with Orbi Universo II.
An alien invasion has fractured humanity into seven ideological factions each with a unique vision for the future. Lead your chosen faction to take control of Earth’s nations, expand across the Solar System, and battle enemy fleets in tactical combat.
- 6

Imperator: Rome
Single-player alternative to Orbi Universo II — playable solo, no multiplayer required. Shares Strategy and Simulation with Orbi Universo II.
Dominate the classical Mediterranean in Imperator: Rome, a grand strategy game from Paradox Interactive. Navigate the dangerous waters of politics and diplomacy as you build up your provinces and conquer foreign lands. Now available with special content and the digital artbook.
- 7

Nations
Single-player alternative to Orbi Universo II — playable solo, no multiplayer required. Shares Strategy and Indie with Orbi Universo II.
Select an era, a nation and lead it to greatness or decay. Develop the economy and society, or focus on military and territorial expansion. In Nations you can rule your people for centuries – from ancient times to the modern day and beyond. You shape your state, history and map of the world.
- 8

Age of History II
Single-player alternative to Orbi Universo II — playable solo, no multiplayer required. Shares Strategy with Orbi Universo II.
Age of History II is a grand strategy wargame that is simple to learn yet hard to master.Your objective is to use military tactics and cunning diplomacy to either unify the world, or conquer it.Will the world bleed out or bow before you? The choice is yours..
- 9

Ruins & Switch
Single-player alternative to Orbi Universo II — playable solo, no multiplayer required. Shares Indie with Orbi Universo II.
A fun retro puzzle-platformer game in which you explore ancient ruins with a unique gameplay. By switching the void and solid blocks, build your way to the end of the levels.
- 10

Khaligrad
Single-player alternative to Orbi Universo II — playable solo, no multiplayer required. Shares Strategy and Indie with Orbi Universo II.
Slip on the boots of a freshly-arrived officer in Khaligrad, a captivating strategy game that plunges you into the heart of a grueling military campaign. Lead your battalion for the Empire or the Union, with intense turn-based battles and unforgiving management phases.
- 11

Dwarf Looter
Single-player alternative to Orbi Universo II — playable solo, no multiplayer required. Shares Indie with Orbi Universo II.
Delve into procedural underground, wielding quirky weapons and bizarre hats. Conquer rats, goblins, and demon lords, all while amassing treasures - but your limited inventory space WILL leads to tough choices. Beware your growing greed in this humor-infused fantasy roguelike challenge!