Top similar games like I am not a Monster: First Contact:
I am not a Monster: First Contact $10.99
Retro sci-fi tactical turn-based strategy with an exciting storyline. The Albatross space liner is overrun by lizard-like monsters that can infect humans and turn them into their own kind. Save the passengers and defeat the hostile creatures.
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ComplexToe$3.99
Strategize boldly, move swiftly, and unlock the potential of intricate thought!

Attrition: Tactical Fronts$14.99
Attrition: Tactical Fronts is a quick play, turn-based strategy game for 1-2 players. Matches can take as little as 5 minutes while offering strategic variety and depth.

Final Theory$14.99
Final Theory is a 4X-lite turn-based strategy game where you command fleets of battleships engaged in a galactic civil war. It presents an exciting experience for both veteran players and those new to the genre. It features innovative combat mechanics but also hearkens back to some of the classics.

YCOMFREE
Have you ever wondered what it's like to command a squad of elite snowballers?

Ground Breakers$0.99
Battle with robots on dynamic, randomly generated battlegrounds, as you attempt to take on the world in this unique turn-based strategy game.

Raifu WarsFREE
Strategize and battle for victory in this cute multiplayer turn-based strategy featuring bolt-action rifle girls!

Frag$5.99
Frag is a roguelike gridless turn-based game of tactical combat that takes place in the near future. Kill the enemy. Grab the loot. Craft new gear. Level up your team. Learn new skills. If you lose a single match, you are done. How long can you survive?

Void Marauders$11.99
Lead a band of space pirates and loot and pillage your way across the stars in this turn based tactical game!

Vae Victis$4.99
Vae Victis is a ruthless minimalistic turn-based strategy game. Engage in intense multiplayer battles with friends or fight through an expansive campaign. With unique units, factions, and abilities you will have to be cunning with your tactical decisions to claim victory!

Special TacticsFREE
ST brings the most intense, tactical-action experience to Steam. Select your custom loadout, plan out strategies and accomplish your objectives. Addictive Survival mode and unrivaled multiplayer including Squads (1 vs 1, 2 vs 2, 2 vs 1)

Worbital$12.99
With the shifting gravity on your side, aim your cannons, blast your enemies and enjoy the fireworks. Worbital is a real-time strategic artillery game in space, peppered with a heavy dose of cosmic chaos. The goal: be the last civilization standing!

Admiral Stepinski$14.99
A multiplayer, tactical, real-time strategy with spaceships

逐鹿$9.99
A stand-alone turn-based war chess game with the theme of Chinese history. The core gameplay is territorial competition, and diplomacy, construction, combat and other gameplay will also revolve around territorial competition.

REVERSI xVSx$4.99
REVERSI xVSx is a party game where 1 to 10 people can play Reversi using self-made stone, board, terrain, and BGM. Up to 5 vs 5 battles can be played against the CPU or online. You can also compete against a self-made CPU using your own videos and thinking routines.

Circle Empires Tactics$15.99
It’s Circle Empires like never before! Take to the field in simultaneous turn-based tactical battles. Combine powerful magical tokens to infuse your army with unstoppable power, and take on evil demigods in single player. Or peer into the minds of your friends and predict their plans in multiplayer.

Efemeris - DTDA Games$2.99
Efemeris is an strategy boardgame dedicated to 2 players.

SOF: Enemy from the futureFREE
Lead the SOF squad and defend the world against alien invasion! Engage in thrilling turn-based battles and uncover the mysteries of enigmatic extraterrestrials. Your time has come – join the fight and safeguard our future!

RelikFREE
Solve classic puzzles in head-to-head PvP. Sharpen your mind and test your wits against other players.

Underwater Wars$7.99
Underwater Wars is a tactical turn-based strategy game that takes place in the depths of the ocean. Two powerful factions of people are fighting a war for territory and resources, but everything changes when mysterious "Aliens" enter the conflict.

Gomoku Let's Go$2.99
Gomoku: One of the most popular classic board games for all ages. Experience Zen style visuals, various levels of AI, seamless online multiplayer and Endgame challenges!

Live by the Sword: Tactics$14.99
Live By The Sword: Tactics is a streamlined tactical RPG that blends classic and contemporary gameplay elements. The game is set in a world recovering from the ravages of war, you must navigate the treacherous landscape to prevent further turmoil. Single Player and Multiplayer modes available.

Mayhem Intergalactic$9.99
Wage war on your friends and enemies in this simple and engaging strategy game. Easy to learn and quick to play, Mayhem Intergalactic is surprisingly strategic. Play against the computer, or duke it out with friends over the internet. The universe shall be yours!

The Last Federation$19.99
From the creators of AI War: Fleet Command comes an all-new grand strategy title with turn-based tactical combat, set in a deep simulation of an entire solar system and its billions of inhabitants. You are the last of a murdered race, determined to unify or destroy the 8 others.

Flotilla 2$9.99
Flotilla 2 is a VR tactical game about big battleships in outer space.