Single-player games like Poly Kingdom: Siege
Below are 8 single-player Steam games similar to Poly Kingdom: Siege, 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 Poly Kingdom: Siege page.
Ranked picks
- 1
Tides of Tethys
Single-player alternative to Poly Kingdom: Siege — playable solo, no multiplayer required. Shares Strategy and Indie with Poly Kingdom: Siege.
Tides of Tethys: Dive, Build, Survive. A tactical exploration building game where you explore the uncharted depths of Tethys; scavenging lost technologies, to survive the dangers of the abyss. As the Overseer, lead expeditions of Knights through the unknown, and help them rebuild their lost Kingdom.
- 2
KingForge
Single-player alternative to Poly Kingdom: Siege — playable solo, no multiplayer required. Shares Strategy and Indie with Poly Kingdom: Siege.
Build a living kingdom where villagers work and survive on their own. Assign roles, keep your people fed, automate your systems, and defend against growing threats. Your kingdom lives or falls by your decisions.
- 3
Fata Deum - The God Sim
Single-player alternative to Poly Kingdom: Siege — playable solo, no multiplayer required. Shares Strategy and Simulation with Poly Kingdom: Siege.
Inspired by the god games of old, Fata Deum lets you mold settlements and townsfolk in your image. Will you raise the settlements to splendor, or spur them on to violent debauchery and demons? Watch as a living world grows under your whims.
- 4
Stronghold Crusader HD (2012)
Single-player alternative to Poly Kingdom: Siege — playable solo, no multiplayer required. Shares Strategy and Simulation with Poly Kingdom: Siege.
The highly anticipated sequel to the best-selling Stronghold, Stronghold Crusader HD throws you into historic battles and castle sieges from the Crusades with fiendish AI opponents, new units, 4 historical campaigns and over 100 unique skirmish missions.
- 5
Calyx
Single-player alternative to Poly Kingdom: Siege — playable solo, no multiplayer required. Shares Strategy and Early Access with Poly Kingdom: Siege.
A strategy game with a new kind of enemy, Calyx puts you in charge of a space mining outpost, locked in battle against powerful plant-aliens. Build your base, gather resources, assemble your forces, and take on the Calyx. With only an out-of-date AI for company, can you survive?
- 6
Gold Gold Adventure Gold
Single-player alternative to Poly Kingdom: Siege — playable solo, no multiplayer required. Shares Strategy and Indie with Poly Kingdom: Siege.
In this world, it’s all about the gold! Use it to build up a fantasy town, recruit heroes, give quests, raise a Godbeast, cast powerful spells, and expand your influence—all one gold coin at a time.
- 7
Here Comes The Swarm
Single-player alternative to Poly Kingdom: Siege — playable solo, no multiplayer required. Shares Strategy and Indie with Poly Kingdom: Siege.
Here Comes the Swarm is a survival RTS with a pause button! Create your strategy, build, manage, and defend your settlements at your own pace. Take the fight to the hive mind and lead expeditions to deliver a deadly blow and eradicate your foes. Will you reclaim Ulora from the relentless Swarm?
- 8
Clanfolk
Single-player alternative to Poly Kingdom: Siege — playable solo, no multiplayer required. Shares Strategy and Simulation with Poly Kingdom: Siege.
Clanfolk is a colony sim set in the Scottish Highlands. Harness your environment to survive - fish, gather, hunt, and farm as you prepare for the winter. Build an inn, trade with other clans, have children and marry them off - live life and prosper across the generations.