Play Alien Invaders.io online in your browser on AllDayGame. This page explains how to start the game, controls, and frequently asked questions. Category: .IO.
About (summary)
Get ready for this crazy alien invasion as you control a UFO Spaceship to defeat other aliens. Move as fast as you can, abduct earthly, boosters and other alien invaders. Be the biggest spaceship and the last UFO. Have fun in the alien war in Alien Invaders io. Play NOW! Features: Customize your game by deciding on your name for Player Name 6 Rare Skin; 15 Epic Skins; 6 Legendary Skins 3 Game Modes: Classic, Solo, and Battle Objectives: Classic (Be the biggest); Solo (Eat the whole city); and Battle (Be the last UFO) Boosters: Treasure Chest, Magnet, Upsize
How to play
Move UFO by dragging mouse
Game info
About this game
Get ready for this crazy alien invasion as you control a UFO Spaceship to defeat other aliens. Move as fast as you can, abduct earthly, boosters and other alien invaders. Be the biggest spaceship and the last UFO. Have fun in the alien war in Alien Invaders io. Play NOW! Features: Customize your game by deciding on your name for Player Name 6 Rare Skin; 15 Epic Skins; 6 Legendary Skins 3 Game Modes: Classic, Solo, and Battle Objectives: Classic (Be the biggest); Solo (Eat the whole city); and Battle (Be the last UFO) Boosters: Treasure Chest, Magnet, Upsize
How to play
Move UFO by dragging mouse
Controls
Mouse / touch: point and click or drag as the game requests. Keyboard: WASD or arrow keys are common for movement; Esc often pauses or exits fullscreen. On mobile, use on-screen controls if the game provides them.
Frequently asked questions
- Do I need to download anything?
- No. Games run in your browser via an embedded player. A stable internet connection helps.
- Is this game free?
- Yes — playing on AllDayGame is free for visitors. Optional accounts may exist for features like leaderboards.
- Why does the game not load?
- Some publishers block embedding on certain domains, or an ad-blocker may interfere. Try disabling strict blockers for this site or refresh the page. If Alien Invaders.io still fails, contact us via the Contact page.
- Does it work on phones?
- Many games are mobile-friendly (compatibility varies by device; try on Wi‑Fi). If performance is low, close background tabs.
Tags
Explore more games in the category: .IO.