Sci-Fi Space Defense : Alien war game app icon

Apps Like Sci-Fi Space Defense : Alien war game for iPhone and iPad

Build towers, upgrade defenses, defeat enemies

Play a tower with challenging levels and futuristic graphics. Build and upgrade towers to defend against waves of enemy ships. Use power-ups to enhance defenses. Purchase in- items to strengthen your base.

by Amr Samir★ 4.121 ratingsGamesFreeData updated 2026-09-09

Sci-Fi Space Defense : Alien war game screenshots

Ranked alternatives

Showing 61–80 of 1,000 ranked alternatives.

  1. The Catapult 2: Castle defense app icon

    The Catapult 2: Castle defense

    BYV GAMES EOOD

    Defend towers with catapults and trebuchets

    Defend a against enemy attacks using catapults, trebuchets, planes, and tanks. Place defensive towers, upgrade weapons, and use armor and special abilities. Play casual tower games with medieval combat mechanics.

    ★ 4.64,022 ratingsGamesFreeData updated 2026-09-16
  2. Tower Breaker - Hack & Slash app icon

    Tower Breaker - Hack & Slash

    Crater Co., Ltd.

    Conquer towers with weapons and armor

    Play a simple action game where players conquer towers by gathering weapons, armors, and shields. Use unique weapon skills to defeat enemies and bosses. Collect pets to aid in growth and upgrades. Strengthen weapons with 100% chance.

    ★ 4.72,127 ratingsGamesFreeData updated 2026-09-17
  1. Rush Defense: idle TD app icon

    Rush Defense: idle TD

    HONG KONG BASIC TECHNOLOGY LIMITED

    Defend waves with enchanted axe

    Play a tower defense game where you place towers and cast spells to defeat waves of enemies. Upgrade towers, unlock abilities, and find relics to enhance your character. Defend against fantasy creatures in an progression system.

    ★ 4.9467 ratingsGamesFreeData updated 2026-09-06
  2. Modern War Defense app icon

    Modern War Defense

    Cantalooza Games LLC

    Defend camp and build defenses

    Defend your camp against enemies in an offline tower game. Customize trucks for combat and progress through over 1000 levels. Manage resources, upgrade towers, and strategize to survive waves of attacks.

    ★ 4.8248 ratingsGamesFreeData updated 2026-09-06
  3. Idle Hero TD Tower Defense RPG app icon

    Idle Hero TD Tower Defense RPG

    Swell Games LLC

    Build defenses, upgrade heroes, defeat monsters

    Defend a kingdom by placing heroes to block monster waves. Customize abilities and upgrade defenses. Play offline and progress through levels. Manage resources to strengthen the team and expand defenses.

    ★ 4.8907 ratingsGamesFreeData updated 2026-09-06
  4. HERO WARS Defense app icon

    HERO WARS Defense

    Jongha Back

    Build heroes, upgrade base, conquer stages

    Defend your base by collecting and upgrading heroes, items, and skills. Create unique characters and level them up to gain super powers. Play through unlimited stages and enhance your base defenses.

    ★ 4.62,242 ratingsGamesFreeData updated 2026-09-13
  5. Overrun: Offline Tower Defense app icon

    Overrun: Offline Tower Defense

    Wildfire Games Ltd

    Defend survivors, build defenses, use items

    Manage a group of survivors in a post-apocalyptic world under zombie attacks. Build defenses, use grenades and first aid kits, and collect resources. Assign roles, upgrade base defenses, and survive waves of enemies.

    ★ 4.612,612 ratingsGamesFreeData updated 2026-10-06
  6. Mega Tower 2: Starship Voyage app icon

    Mega Tower 2: Starship Voyage

    FAST RUN SINGAPORE PTE.LTD.

    Defend planets and upgrade towers

    Play a defense game set in a futuristic space world. Deploy different towers to defend against waves of enemies. Unlock unique skills and strategies to overcome challenges. Explore diverse space environments and complete missions to progress.

    ★ 4.5198 ratingsGamesFreeData updated 2026-09-06
  7. Kingdom Rush Frontiers TD+ app icon

    Kingdom Rush Frontiers TD+

    IRONHIDE IRELAND LIMITED

    Defend lands with towers and heroes

    Defend territories against enemies using tower defense mechanics. Build and upgrade towers with over 18 abilities. Summon heroes and special units to attack enemies. Complete levels with increasing difficulty and unlock new content.

    ★ 4.816,435 ratingsGamesFreeData updated 2026-09-06
  8. Tiny Guardians app icon

    Tiny Guardians

    Kurechii Sdn Bhd

    Play, build, and conquer in real-time

    Play as a guardian defending your village against waves of enemies. Build and upgrade towers with unique abilities. Manage resources to strengthen your defenses. Unlock new units and strategies to adapt to increasing challenges.

    ★ 4.81,113 ratingsGames$3.99Data updated 2026-09-09
  9. Zombie Fortress: Trap Defense app icon

    Zombie Fortress: Trap Defense

    SayGames LTD

    Defend bases, merge weapons, defeat zombies

    Defend against waves of zombies using tower mechanics. Place and upgrade towers to shoot zombies. Collect weapons and equipment to enhance defenses. Merge weapons for stronger combinations. Progress through levels with increasing difficulty.

    ★ 4.51,709 ratingsGamesFreeData updated 2026-09-06
  10. Checkers app icon

    Checkers

    Vintolo Ltd

    Play with friends or computer

    Play with 1 or 2 players against computer opponents with 5 difficulty levels. Enable or disable forced captures. Undo moves and enjoy HD graphics on compatible devices.

    ★ 4.786,814 ratingsGamesFreeData updated 2026-09-08
  11. Nighty Knight: Frontier War TD app icon

    Nighty Knight: Frontier War TD

    Pusilung HK Limited

    Defend the kingdom and build your army

    Defend your kingdom's fort against raiders and cursed legions. Build and upgrade towers to attack enemies. Manage resources to strengthen defenses. Assign different units like archers and knights to various positions.

    ★ 4.9776 ratingsGamesFreeData updated 2026-09-06
  12. Draw Army: 3D Battle Simulator app icon

    Draw Army: 3D Battle Simulator

    OREON STUDIOS OYUN YAZILIM TEKNOLOJI TICARET ANONIM SIRKETI

    Command and troops

    Command troops in real-time battles and strategize troop positioning to conquer enemy strongholds. Build and defend a base with resource management. Customize units and tactics for tactical warfare.

    ★ 4.68,525 ratingsGamesFreeData updated 2026-09-06
  13. Grim Defender: Castle Defense app icon

    Grim Defender: Castle Defense

    Byteghoul UG (haftungsbeschraenkt)

    Defend , upgrade defenses, defeat waves

    Defend your against waves of monsters. Upgrade structures and collect resources. Equip and combine crossbows, spells, traps, and modules. Improve defenses and strategies to survive endless attacks.

    ★ 4.71,064 ratingsGamesFreeData updated 2026-09-14
  14. Red Siren: Space Defense app icon

    Red Siren: Space Defense

    Istom Games Kft.

    Mine resources and build bases

    Play as a soldier in a futuristic military squad defending bases from raiders. Complete missions to earn rewards. Upgrade equipment and unlock new weapons. Manage inventory and strategize combat tactics. Collaborate with squad members in real-time.

    ★ 4.5501 ratingsGamesFreeData updated 2026-09-15
  15. Frost Saga: Tower Defense app icon

    Frost Saga: Tower Defense

    MAX GAME PTE. LTD.

    Build towers, upgrade, defeat monsters

    Build towers with elemental classes to defend against monsters. Upgrade towers for enhanced skills and power. Shape monster paths through strategic placement. Play roguelike battles with random buffs and unpredictable enemies.

    ★ 4.6256 ratingsGamesFreeData updated 2026-09-06
  16. Mushroom Wars 2: RTS Strategy app icon

    Mushroom Wars 2: RTS Strategy

    AZUR INTERACTIVE GAMES LIMITED

    Command armies, build bases, defeat enemies

    Command armies in real-time battles. Upgrade base structures, capture objectives, and defend against waves of enemies. Build and manage a tribe, deploy hero units with unique skills, and strategize tower defense tactics across multiple levels.

    ★ 4.526,535 ratingsGamesFreeData updated 2026-09-11

How we rank alternatives

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