178+ iOS apps & games curated and reviewed
Every iPhone needs a few good alien war td2 apps and games. We benchmark 178+ of them on App Store rating, freshness, and pricing, then surface the standouts so you don't have to scroll the App Store yourself.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 |  | Free | 4.7★ (24) | No | Yes | May 2026 |
| 2 |  | Free | 4.8★ (8.9K) | Yes | Yes | Jul 2026 |
| 3 |  | Free | 4.7★ (651K) | Yes | Yes | Jul 2026 |
| 4 |  | Free | 3.8★ (12) | No | Yes | May 2026 |
| 5 |  | Free | 4.8★ (127K) | Yes | Yes | Jul 2026 |
| 6 |  | Free | 4.0★ (284) | Yes | Yes | May 2026 |
| 7 |  | Free | 4.6★ (9.9K) | No | Yes | Jul 2026 |
| 8 |  | Free | 3.3★ (131) | Yes | Yes | May 2026 |
Engage in strategic defense against alien creatures with a diverse arsenal of weapons and flexible tactics. This game offers enhanced graphics and challenging gameplay with new weapon systems and artificial terrains for a fresh experience.
Defend Earth from alien invaders in this idle tower defense game. Build diverse turrets, strategize your defense, and power up your character with unique skills and weapons. Collect resources and take on global challenges to protect the planet.
Pilot a lone spaceship to defend Earth from relentless alien swarms in this classic space shooter. Upgrade your weapons and skills to overcome increasingly difficult challenges across numerous levels and intense boss battles.
Defend Earth from alien invaders by strategically deploying and upgrading cannons and special weapons. This addictive game challenges your judgment and quick thinking to protect your bunker from increasingly powerful enemies.
Command an alien and grow its army by defeating humans in this idle RPG. Evolve your alien with new abilities, upgrade its stats, and face challenging boss battles to achieve extraterrestrial dominance.
Engage in epic sci-fi battles in 2084, training and equipping space marines to conquer planets. Lead your forces across a star map, challenge friends, and strategize with tactic cards to dominate the galaxy.
Defend your flock from an alien invasion in this strategic tower defense game. Deploy a variety of updated and new weapons across numerous maps and campaigns. Utilize unique character abilities and optional in-app purchases to overcome challenging enemies and bosses.
Lead an alien invasion in this fast-paced strategy game. Choose from various alien races, harvest resources, and upgrade your forces to conquer Earth. Experience challenging gameplay with multiple difficulty levels.
Engage in epic online boss battles and challenging single-player missions in this action-packed shooter. Collect tons of gear, upgrade weapons, and customize your avatar to conquer alien invaders. Team up with friends for cooperative survival and intense multiplayer action.
Build and merge towers to defend a planet in this casual strategy game. Strategically deploy and upgrade your defenses to conquer alien worlds. Experience thrilling sci-fi battles with endless challenges.
Engage in thrilling third-person shooter battles across space, facing alien hordes and challenging bosses. Team up with or compete against other players in various multiplayer modes, customizing your arsenal and combat style.
Build and manage a secret desert facility to research salvaged alien technology. Expand your operations, unlock advanced research, and defend against government raids and alien interference. Your strategic decisions will determine the fate of your facility and potentially the world.
Command a powerful war mecha in a post-apocalyptic wasteland. Customize your robot, recruit elite pilots, and defend against waves of enemies and rival factions in this strategic tower defense game. Only the strongest will survive the last war for humanity.
Defend your home planet from an alien invasion in this unique tower defense strategy game. Instead of building towers, you'll destroy enemy structures using a variety of military units and upgrades. Engage in seamless battles with growing difficulty and diverse enemies.
Defend Earth from an alien invasion by building a strategic space station fortress. Deploy a variety of upgradable weapons and traps to overcome over 150 waves of enemies and challenging bosses.
Engage in fast-paced tower defense battles against alien invaders. Deploy a variety of towers, heroes, and infantry to defend Earth. Upgrade your defenses and strategize to overcome hordes of enemies across numerous levels and challenges.
Embark on an interstellar adventure to defend humanity from an alien invasion. Build and expand your base, develop powerful fighter jets and mechs, and engage in strategic combat to reclaim planets and ultimately defeat the enemy. Experience a visually rich 3D world with smooth gameplay.
Engage in a thrilling tower defense game where you pilot a flying saucer to devour objects, gather resources, and build powerful cannons. Strategically defend your base against relentless zombie invasions by upgrading your saucer and fortifying your defenses.
Defend your space outpost from relentless enemy waves in this idle tower defense game. Upgrade your warship, deploy powerful towers, and unlock advanced weapons to survive galactic battles. Conquer star systems and climb leaderboards in an immersive sci-fi experience.
Command a galactic defense to protect your space tower from alien invaders. Strategically upgrade your tower's abilities and weapons to withstand relentless waves of enemies and defeat powerful bosses. Enjoy idle gameplay with ample rewards, even while offline.