247+ iOS apps & games curated and reviewed
With an average user rating of 4.5★, the alien idle category is one of the App Store's strongest. Browse all 247+ apps and games we track, sorted so the most loved ones surface first.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 |  | Free | 4.8★ (128K) | Yes | Yes | Sep 2026 |
| 2 |  | Free | 4.0★ (3) | Yes | No | Aug 2026 |
| 3 |  | Free | 4.8★ (10K) | Yes | Yes | Sep 2026 |
| 4 |  | Free | 4.7★ (26K) | Yes | Yes | Sep 2026 |
| 5 |  | Free | 4.5★ (123) | Yes | No | Jul 2026 |
| 6 |  | Free | 4.7★ (364) | Yes | Yes | Sep 2026 |
| 7 |  | Free | 4.8★ (14K) | No | Yes | Sep 2026 |
| 8 |  | Free | 4.7★ (1.3K) | Yes | Yes | Sep 2026 |
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.
Control a rapidly evolving alien lifeform and conquer Earth. Consume humans to grow stronger, unlock new mutations, and dominate every battlefield. Upgrade your abilities and spread your alien domination across the planet.
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.
Simulate incredible transformations from human to mythical creatures like Werewolves, Yetis, and Aliens. Explore various evolutionary paths and discover unexpected outcomes in this engaging simulation game.
Engage in a hyper-casual space war by tapping to destroy hostile spaceships. Upgrade your alien heroes to increase damage and unlock new abilities. Enjoy a stress-relieving, offline gaming experience.
Build a research station to uncover the secrets of a mysterious alien Obelisk. Manage employees, defend your base from alien invaders, and upgrade heroes. Progress continues even when you're offline.
Embark on a dark fantasy adventure as a Shadow Hunter, battling demons and monsters in a ruined world. Master intense hack and slash combat, face epic boss fights, and upgrade your gear to restore light.
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.
Engage in an endless sci-fi idle game battling alien waves. Customize your ship with unlockable weapons and defenses, and strategically upgrade various systems to increase your power. Make impactful decisions to counter enemy types and progress through a well-paced unfolding experience.
Enjoy a collection of classic and modern mini-games offline, perfect for quick breaks or travel. This arcade offers a variety of genres, from strategy to action, with simple controls and engaging graphics. Play against the computer or a friend without needing an internet connection.
Lead an alien entity in an idle survival game to conquer the planet by consuming humans and evolving your army. Face formidable bosses and complete quests in exhilarating arcade action.
Build an empire of cannons to defend worlds against alien invaders in this casual idle shooting game. Discover new technologies and blast your way to victory.
A physics-based puzzle game where you design and build bridges using various materials. Test your creations in 3D to see if they hold up under pressure, with multiple levels and environments to explore.
Build and customize historical aircraft piece by piece, then take them to the skies in challenging aerial survival missions. Earn in-game currency to expand your fleet and become an ultimate air force legend.
