Sigma Theory app icon

Apps Like Sigma Theory for iPhone and iPad

by Plug In Digital★ 4.58 ratingsGames$6.99Data updated 2026-09-21

Sigma Theory screenshots

Ranked alternatives

Showing 101–120 of 1,000 ranked alternatives.

  1. Nexus War app icon

    Nexus War

    VoyagerOne Pte. Ltd.

    Build armies, fight battles, survive

    Manage a military force by recruiting and upgrading units from four factions. Assign heroes with unique abilities to lead battles. Explore a war-torn world to gather resources and unlock new strategies.

    ★ 4.63,332 ratingsGamesFreeData updated 2026-09-06
  2. Avatar: Realms Collide app icon

    Avatar: Realms Collide

    Tilting Point LLC

    Earn shards and collect decorations

    Play as Toph's alter ego in a chaotic event with collectible rewards and shard earning. Engage in PvP battles in Ba Sing Se Arena, team up for Murong’s Vault wars, and participate in seasonal events with themed rewards and new content.

    ★ 4.713,481 ratingsGamesFreeData updated 2026-09-06
  1. Anchor Panic app icon

    Anchor Panic

    HOWLYO HONG KONG LIMITED

    Play as an Operator in a sci-fi

    Play a turn-based strategy game set in a sci-fi anime world. Manage Operators with AIMBS technology. Explore post-war factions and global conflicts. Complete missions, upgrade skills, and build strategies to defend against alien threats.

    ★ 4.81,463 ratingsGamesFreeData updated 2026-09-06
  2. American Ball app icon

    American Ball

    Sigma Game Limited

    Play, decorate, and visit player rooms

    Play a 3D version of with realistic physics. Buy and place 3D furniture in your 360 Bar. Compete in online tournaments against other players. Explore and decorate virtual rooms. Challenge players anytime via online matches.

    ★ 3.5134 ratingsGamesFreeData updated 2026-09-08
  3. Narcos: Cartel Wars & Strategy app icon

    Narcos: Cartel Wars & Strategy

    Tilting Point LLC

    Conquer enemies and build your

    Play as a leader in a gritty crime simulation. Manage operations, recruit allies, and complete missions. Upgrade weapons and vehicles. Choose between power-based or loyalty-driven strategies.

    ★ 4.711,407 ratingsGamesFreeData updated 2026-09-11
  4. MEGA MAN X app icon

    MEGA MAN X

    CAPCOM Co., Ltd

    Play, upgrade, and conquer challenges

    Play as to defeat Sigma's forces. Use a variety of weapons and upgrade parts. Choose from three difficulty levels: Easy, Normal, and Hard. Support Retina Display and two display modes: Regular and Full.

    ★ 4.1847 ratingsGames$0.99Data updated 2026-11-14
  5. Subterfuge app icon

    Subterfuge

    Secret Plan LLC

    Play, gather, and strategize with others

    Play a real-time strategy game with other players. Gather intelligence, issue orders, and coordinate actions. Influence game outcomes through diplomacy and strategic planning. Track progress and interact with opponents throughout the week-long match.

    ★ 4.7582 ratingsGamesFreeData updated 2026-09-08
  6. Z Day: Hearts of Heroes app icon

    Z Day: Hearts of Heroes

    FunPlus International AG

    Play alternate history battles

    Explore alternate history scenarios where weather weapons caused D-Day failures and an antimatter bomb led to global destruction. Navigate a world where evil forces seek to conquer humanity.

    ★ 4.25,990 ratingsGamesFreeData updated 2026-09-14
  7. MWT: Tank Battles. Modern War app icon

    MWT: Tank Battles. Modern War

    ARTSTORM FZE

    Battle with tanks, shoot, and destroy

    Play as armored vehicles in intense PvP battles. Customize tanks with weapons and upgrades. Engage in team-based combat with drones, helicopters, and artillery. Participate in large-scale battles with multiple units and support roles.

    ★ 4.810,769 ratingsGamesFreeData updated 2026-09-06
  8. Flight Theory HD app icon

    Flight Theory HD

    Jason Allen

    Fly over mountains, valleys, and more.

    The app allows users to fly over diverse terrain and land on various locations. It simulates flight physics and offers unlockable content and leaderboards for scoring landings.

    ★ 3.170 ratingsGamesFreeData updated 2026-10-17
  9. Frost World app icon

    Frost World

    Estoty LLC

    Build camps, scavenge resources, survive the cold

    Survival game where players explore a frozen post-apocalyptic . Scavenge for resources, build camps, and craft weapons. Manage supplies like food and fuel. Set traps and create safe zones to survive the harsh winter conditions.

    ★ 4.59,527 ratingsGamesFreeData updated 2026-09-06
  10. Spy Quest app icon

    Spy Quest

    Polybius Games Ltd

    Interactive spy adventure for hotel guests.

    The app is an interactive spy adventure game for children at hotels and resorts. It involves missions with codes, puzzles, and clues, plus augmented reality features like Spy Cam and Star Cam.

    ★ 3.02 ratingsEntertainmentFreeData updated 2026-11-14

How we rank alternatives

Apps are ranked by functional similarity, category fit, rating confidence, and popularity.