Free games like Sumerian Six
Below are 8 free-to-play Steam games similar to Sumerian Six, 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 Sumerian Six page.
Ranked picks
- 1
Girls' Frontline
Free-to-play alternative to Sumerian Six — no purchase or trial window. Shares Strategy with Sumerian Six.
As a Commander for Griffin & Kryuger PMC. Navigate faction power struggles, deploy forces strategically, and work to restore order in a war-torn world.
- 2
POSTAL
Free-to-play alternative to Sumerian Six — no purchase or trial window. Shares Action with Sumerian Six.
Take control of The POSTAL Dude in his infamous first outing as he battles to survive in a world gone mad! POSTAL is a classic isometric shooter filled to the brim with fast-paced explosive action.
- 3
Intravenous 2: Mercenarism
Free-to-play alternative to Sumerian Six — no purchase or trial window. Shares Action and Strategy with Sumerian Six.
Playing as Gideon, a cold-hearted mercenary willing to kill for money without any moral principles, you'll have tactical freedom with a wide variety of weapons and special gadgets to complete your mission in the prologue of Intravenous 2.
- 4
Phobies
Free-to-play alternative to Sumerian Six — no purchase or trial window. Shares Strategy with Sumerian Six.
Phobies is a tactical card collecting strategy game where players battle one another in the surreal realm of the subconscious, where fears manifest. Use devious tactics and unleash a dazzling array of attacks and abilities to achieve victory!
- 5
Halls of Torment: Prelude
Free-to-play alternative to Sumerian Six — no purchase or trial window. Shares Action with Sumerian Six.
Slay hordes of terrifying monsters in this horde survival roguelite. Descend into the Halls of Torment where the Lords of the underworld await you. Treasures, magical trinkets, and a growing cast of heroes will grant you the power to vanquish these horrors from beyond. How long can you survive?
- 6
SOVL: Fantasy Warfare
Free-to-play alternative to Sumerian Six — no purchase or trial window. Shares Strategy with Sumerian Six.
SOVL is a ruleset for playing fantasy wargames. It can be played with miniatures on a table or digitally on Steam.
- 7
Minion Masters
Free-to-play alternative to Sumerian Six — no purchase or trial window. Shares Action and Strategy with Sumerian Six.
An addictive fast-paced hybrid of Card games & Tower-Defense. Play 1v1 - or bring a friend for 2v2 - and engage in epic online multiplayer battles full of innovative strategy and awesome plays! Collect 200+ cards with unique mechanics, all free!
- 8
World of Warships
Free-to-play alternative to Sumerian Six — no purchase or trial window. Shares Action and Strategy with Sumerian Six.
Immerse yourself in thrilling naval battles and assemble an armada of over 800 ships from the first half of the 20th century — from stealthy destroyers to gigantic battleships. Change the look of your ship, choose upgrades to suit your play style, and go into battle with other players!