Apps Like Sigma Theory for iPhone and iPad
Sigma Theory screenshots
Ranked alternatives
Showing 161–180 of 1,000 ranked alternatives.
XCOM 2 Collection
Feral Interactive Ltd
Play games, unlock content, track progress
Play with turn-based strategy gameplay. Manage missions, upgrade weapons, and customize units. Track progress through campaigns and unlock new content. Save and load game states. Requires 8.5GB free storage and iOS 14 or later.
Space Survivor - Star Pioneer
Gemini Network
Build bases, develop fighters, fight aliens
Build a base using available resources and unlock structures to expand. Construct fighter jets to battle Zerg forces. Manage combat mechas and defend against attacks. Upgrade technology and manage resources to survive and grow.
Doodle Jump - Insanely Good!
Lima Sky
Play and endlessly
Play a free version of a popular jumping game with endless levels and power-ups. Collect coins, avoid obstacles, and unlock new characters. Compete in leaderboards and share scores with friends.
Great Conqueror 2: Shogun
悦 张
Fight battles and claim territories
Play as historical warlords in a turn-based strategy game. Manage resources, build fortifications, and lead armies in battles. Recruit and upgrade units, form alliances, and expand territory. Complete quests and unlock special abilities.
Clone Evolution: Cyber War
Feelingtouch Limited
Train clones, upgrade armies, battle foes
Play a science fiction themed card game featuring idle RPG mechanics. Build and upgrade a army through strategic battles. Collect and evolve cards with unique abilities. Unlock new units and technologies through progression.
99 Survival Nights Forest
Alyan Tariq Gujjar
Survive 99 in Iceland
Game allows players to explore icy terrain, gather resources, and build shelters. Craft tools for hunting, start fires for warmth, and manage hunger and cold. Navigate dangers like predators and harsh weather.
Angel Legion
远 程
Play, collect, and level up heroes
Play a 3D idle RPG with character customization and faction-based progression. Collect and upgrade characters from the Star Alliance, Oriental Force, and Rebel Army. Complete quests, manage resources, and battle in turn-based combat.
Eldrum: Red Tide - Text RPG
Act None AB
Play -based RPGs with branching choices
Explore a dark fantasy RPG with -based storytelling. Make choices that affect the narrative. Track character stats and inventory. Engage in combat and quests. Unlock new abilities and equipment.
SkyDrift: Airplane Game 3D
Mobify LLC
Fly planes, complete missions, level up
Choose a plane from an airport hangar and inspect it before takeoff. Test controls and ensure engines are ready. Pilot aircraft through various missions and levels. Upgrade equipment and customize planes.
ASTROKINGS: Galactic Survival
ANGames Co.,Ltd
Build and command space fleets
Manage resources and build planetary facilities across multiple worlds. Command customizable space fleets in real-time battles. Form alliances to conquer the galaxy. Upgrade ships and weapons. Track progress and manage in-game economies.
How we rank alternatives
Apps are ranked by functional similarity, category fit, rating confidence, and popularity.