Single-player games like Solar Nations 2
Below are 15 single-player Steam games similar to Solar Nations 2, 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 Solar Nations 2 page.
Ranked picks
- 1

SandTable War: Three Kingdoms
Single-player alternative to Solar Nations 2 — playable solo, no multiplayer required. Shares Strategy and Simulation with Solar Nations 2.
"SandTable War: Three Kingdoms" is a strategic simulation game set during the Three Kingdoms period. Here you can play as various factions from Three Kingdoms history to conquer cities and lands, unify the realm. With abundant historical officers and scenarios, come restore the Han Dynasty!
- 2

Supreme Ruler Ultimate
Single-player alternative to Solar Nations 2 — playable solo, no multiplayer required. Shares Strategy and Simulation with Solar Nations 2.
Real-Time Strategy/Wargame. From World War II through the Cold War and into the future, re-live or re-imagine the tensions and crises of our recent history! Guide your nation through the era of your choice in Campaigns, Scenarios, and Sandboxes, as you make every effort to become Supreme Ruler!
- 3

Terra Invicta
Single-player alternative to Solar Nations 2 — playable solo, no multiplayer required. Shares Strategy and Simulation with Solar Nations 2.
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.
- 4

Imperator: Rome
Single-player alternative to Solar Nations 2 — playable solo, no multiplayer required. Shares Strategy and Simulation with Solar Nations 2.
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.
- 5

Panzer Corps 2
Single-player alternative to Solar Nations 2 — playable solo, no multiplayer required. Shares Strategy with Solar Nations 2.
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.
- 6

Steel Division 2
Single-player alternative to Solar Nations 2 — playable solo, no multiplayer required. Shares Strategy and Simulation with Solar Nations 2.
Steel Division 2 is a historically-accurate WW2 real-time strategy game set on the Eastern Front. Features 1:1-scale turn-based army management and real-time tactical battles with thousands of men at your order.
- 7

Broken Arrow
Single-player alternative to Solar Nations 2 — playable solo, no multiplayer required. Shares Strategy with Solar Nations 2.
Broken Arrow is a large-scale real-time modern warfare tactics game that combines the complexity of joint-forces wargaming with action-packed real-time tactics gameplay.
- 8

SuperPower 3
Single-player alternative to Solar Nations 2 — playable solo, no multiplayer required. Shares Strategy and Simulation with Solar Nations 2.
SuperPower 3 is a modern geopolitical sim in a planet Earth setup. Rule the world or challenge your knowledge about demography, economics, military strategy, as well as political issues across the globe. Compete with or against other players, or just try to do better than the real-life politicians.
- 9

Stellaris
Single-player alternative to Solar Nations 2 — playable solo, no multiplayer required. Shares Strategy and Simulation with Solar Nations 2.
Explore a galaxy full of wonders in this sci-fi grand strategy game from Paradox Development Studios. Interact with diverse alien races, discover strange new worlds with unexpected events and expand the reach of your empire. Each new adventure holds almost limitless possibilities.
- 10

The Expanse
Single-player alternative to Solar Nations 2 — playable solo, no multiplayer required. Shares Early Access with Solar Nations 2.
You and your team are elite killers. Its your job to help defend and protect earth and inform us of your findings. The South East Spaceport have reported nightmareish zombies. The most unsettling thing is that people have changed and will not stop eating each other.
- 11

Victoria 3
Single-player alternative to Solar Nations 2 — playable solo, no multiplayer required. Shares Strategy and Simulation with Solar Nations 2.
Paradox Development Studio invites you to build your ideal society in the tumult of the exciting and transformative 19th century. Balance the competing interests in your society and earn your place in the sun in Victoria 3, one of the most anticipated games in Paradox’s history.
- 12

Europa Universalis V
Single-player alternative to Solar Nations 2 — playable solo, no multiplayer required. Shares Strategy with Solar Nations 2.
Use war, trade or diplomacy to satisfy your grandest ambitions and dominate five centuries of history in the newest version of Europa Universalis, Paradox Interactive's flagship historical grand strategy game.
- 13

Red Rising
Single-player alternative to Solar Nations 2 — playable solo, no multiplayer required. Shares Strategy with Solar Nations 2.
Fight for dominance with up to 6 players in the official digital adaptation of the award-winning board game. Assemble a hand of followers, chain together powerful combos, and lead your house to victory in this clash of cards set in the dystopian world of Red Rising.
- 14

HUNDRED FIRES: The rising of red star - EPISODE 3
Single-player alternative to Solar Nations 2 — playable solo, no multiplayer required. Shares Strategy with Solar Nations 2.
Prepare for the climactic finale as Montenegro returns for one last mission. Use your stealth skills to rescue your beloved daughter, Merche, and unravel the trilogy's thrilling conclusion amidst intense action and suspenseful gameplay!
- 15

Hearts of Iron IV
Single-player alternative to Solar Nations 2 — playable solo, no multiplayer required. Shares Strategy and Simulation with Solar Nations 2.
Victory is at your fingertips! Your ability to lead your nation is your supreme weapon, the strategy game Hearts of Iron IV lets you take command of any nation in World War II; the most engaging conflict in world history.