Free games like Three Kingdoms 21
Below are 8 free-to-play Steam games similar to Three Kingdoms 21, ranked by player overlap and content similarity. No purchase or Steam login required to view the list. Every pick is a full free-to-play title — not a demo, trial, or time-limited giveaway. imho.run's catalogue refreshes daily, so newly free or newly popular titles surface here without manual editing.
Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like Three Kingdoms 21 page.
Ranked picks
- 1
Die in the Dungeon: Origins
Free-to-play alternative to Three Kingdoms 21 — no purchase or trial window.
Fight your way through a mysterious dungeon in this deck-building, turn-based roguelike game where you don't use cards, but DICE! Deal with enemies by combining dice on your board, boost their effects with magical relics, and discover the story behind Die in the Dungeon!
- 2
NERTS! Online
Free-to-play alternative to Three Kingdoms 21 — no purchase or trial window. Shares Casual with Three Kingdoms 21.
NERTS! Online is a fast-paced competitive solitaire game for you and up to five of your friends, played the same way we play it at the Zachtronics office!
- 3
Dominion
Free-to-play alternative to Three Kingdoms 21 — no purchase or trial window.
Expand a small kingdom to a mighty Dominion! Play the Spiel des Jahres winning boardgame beloved by millions around the world. Discover the game that defined a genre, Dominion was first to popularize deck-building and remains a staple of tabletop. This is the officially licensed implementation.
- 4
Infinitode 2 - Infinite Tower Defense
Free-to-play alternative to Three Kingdoms 21 — no purchase or trial window.
Infinitode 2 - a strategy in the Tower Defense genre, in which the player will have to build towers to protect his base from endless waves of enemies. The game features huge maps, lots of towers, resource miners, upgrade tree and map editor.
- 5
Yi Xian: The Cultivation Card Game
Free-to-play alternative to Three Kingdoms 21 — no purchase or trial window. Shares Casual with Three Kingdoms 21.
Yi Xian: The Cultivation Card Game is an online DBG which contains a PVE mode called Uncharted Realms and a PVP mode. Every game is a deck building from scratch. Players can have stronger decks by changing cards, and then build more powerful routines to defeat all opponents to win.
- 6
The Spike Cross
Free-to-play alternative to Three Kingdoms 21 — no purchase or trial window.
"The thrill of spiking in volleyball. Why don't you try it out?" Developed by an indie developer who loves volleyball! The sports game made after numerous trial and error to contain the appeal of volleyball!
- 7
NSFW Solitaire & Puzzles
Free-to-play alternative to Three Kingdoms 21 — no purchase or trial window. Shares Casual with Three Kingdoms 21.
191 solitaire games + 21 puzzles with nudity and sex. Many kinks and fetishes: catgirls, orgies, sex machines, cumshots, pussy squirts, futanaris, femboys, furry/monster, bondage, pregnant, and more. Full customization. Cards editor.
- 8
Kādomon: Hyper Auto Battlers Prologue
Free-to-play alternative to Three Kingdoms 21 — no purchase or trial window.
Begin your monster-taming journey in Kādomon: Hyper Auto Battlers Prologue. Fight, collect, upgrade and evolve Kādomon to build your ultimate team in this prologue version of Kādomon: Hyper Auto Battlers. Experience the brand-new features, mechanics and Kādomon for the first time.