Single-player games like Summa Expeditionis
Below are 9 single-player Steam games similar to Summa Expeditionis, 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 Summa Expeditionis page.
Ranked picks
- 1
Primitive Society Simulator
Single-player alternative to Summa Expeditionis — playable solo, no multiplayer required. Shares Strategy and Simulation with Summa Expeditionis.
A colony-building game combined with grand strategy elements. Play as a tribal leader, guiding your people from the Stone Age to the Bronze Age. Survive, multiply, and compete for territory among ancient nations.
- 2
Manor Lords
Single-player alternative to Summa Expeditionis — playable solo, no multiplayer required. Shares Strategy and Simulation with Summa Expeditionis.
Manor Lords is a medieval strategy game featuring in-depth city building, large-scale tactical battles, and complex economic and social simulations. Rule your lands as a medieval lord – the seasons pass, the weather changes, and cities rise and fall.
- 3
Kenshi
Single-player alternative to Summa Expeditionis — playable solo, no multiplayer required. Shares Action and Strategy with Summa Expeditionis.
A free-roaming squad based RPG. Focusing on open-ended sandbox gameplay features rather than a linear story. Be a trader, a thief, a rebel, a warlord, an adventurer, a farmer, a slave, or just food for the cannibals. Train your men up from puny victims to master warriors.
- 4
Ostriv
Single-player alternative to Summa Expeditionis — playable solo, no multiplayer required. Shares Strategy and Simulation with Summa Expeditionis.
Ostriv is a city-building game that puts you in a role of a governor of an 18th century Ukrainian town to challenge your creative skills and management abilities.
- 5
Norland
Single-player alternative to Summa Expeditionis — playable solo, no multiplayer required. Shares Strategy and Simulation with Summa Expeditionis.
Lead your noble family in this medieval colony sim, facing off against class conflict, religious struggle, and political treachery. Tend to your people’s needs, uncover the lost knowledge of a fallen empire, and engage in nefarious plots against your enemies.
- 6
Workers & Resources: Soviet Republic
Single-player alternative to Summa Expeditionis — playable solo, no multiplayer required. Shares Strategy and Simulation with Summa Expeditionis.
Build a soviet republic from an impoverished country into a rich industrial superpower in a city builder with intricate production chains and a fully simulated global economy. Manage the lives of your citizens from education to work and party loyalty to criminal activity.
- 7
Judgment: Apocalypse Survival Simulation
Single-player alternative to Summa Expeditionis — playable solo, no multiplayer required. Shares Strategy and Simulation with Summa Expeditionis.
Build, scavenge, craft, and perform occult rituals to survive in a demon-infested, post-apocalyptic colony simulation. Will you survive Judgment day?
- 8
Land of the Vikings
Single-player alternative to Summa Expeditionis — playable solo, no multiplayer required. Shares Strategy with Summa Expeditionis.
Land of the Vikings is a survival colony sim game. Build and lead your village, and expand it into a thriving city. A wise Jarl must manage resources, survive harsh conditions, and guide their fellow Vikings to work together through social conflict. Skál!
- 9
RimWorld
Single-player alternative to Summa Expeditionis — playable solo, no multiplayer required. Shares Strategy and Simulation with Summa Expeditionis.
A sci-fi colony sim driven by an intelligent AI storyteller. Generates stories by simulating psychology, ecology, gunplay, melee combat, climate, biomes, diplomacy, interpersonal relationships, art, medicine, trade, and more.