Screenshots
Watch trailer on Steam ↗U.F.O. K.O. Tower Defense
Pixel General LLC · Published by Pixel General LLC · Official site ↗
4 user reviews — 75% positive (4 reviews) · 23 achievements
Last updated 27 Sept 2026
U.F.O. K.O. Tower Defense: Place lasers, missile launchers, sniper turrets, and use combat strategies such as airstrikes and the space ray to repel waves of alien invaders in this sci-fi tower defense game.
£1.69
Lowest price we've ever recorded
View on SteamPrices can lag the live Steam store — always confirm before buying.
Price history
Action, Indie, Simulation, Strategy, Casual · 2021 · More under £5 games
Command your defenses against relentless alien attacks in U.F.O. K.O. Tower Defense, a blend of action and strategy where you deploy lasers and missiles to protect Earth from invaders.
About this game
ABOUT THIS GAME
Your planet is being invaded. We are receiving reports that sightings of up to 10 different craft are being seen in the skies all over the world. There is no evidence that these craft are alien, but we can't rule it out. You have been assigned the task of defending the planet and have been given access to 6 unique weapons to defend 20 tactical locations. Access to a direct line to HQ for orbital and air support has additionally been granted to help you fight off the hostile forces and save the day. The fate of the world is in your hands. Will mankind be assimilated?
FEATURES
- 23 Steam Achievements- Show your progress on your steam profile
- 20 Levels - Play through 20 levels in 4 different environments
- 10 Alien Craft - We cant confirm these craft are alien, but we can't rule it out
- 6 Upgradable Turrets - Upgrade your turrets to Increase effectiveness
- 2 Special Abilities- Call in airstrikes and orbital attacks from HQ
- Replayability - Go back for 3 stars or reset in-game progress
System Requirements
Will my PC run this? →Minimum
- Requires a 64-bit processor and operating system
- OS: Windows 10 - 64 bit
- Processor: intel core i3-3220U 3.3 GHZ
- Memory: 4 GB RAM
- Graphics: OpenGL 2.0 compatible, ATI, Nvidia or Intel HD
- DirectX: Version 11
- Storage: 300 MB available space
Recommended
- Requires a 64-bit processor and operating system
Supported Languages
Latest news
Patch NotesOfficial
Update
{STEAM_CLAN_IMAGE}/40663307/afa93d5dc9fe017c4b83eb529426d3e499ba45e9.png August 7, 2021 Update Notes 1.01 Fixed missing text from tutorial pop upRead full article on Community Announcements (Pixel General)AnnouncementsOfficial
U.F.O. K.O. Tower Defense is Now Available
{STEAM_CLAN_IMAGE}/40663307/e15bbca04c2ae51ffeee58d9d7e223488a7d55e8.pngRead full article on Community Announcements (Pixel General)AnnouncementsOfficial
U.F.O. K.O. Tower Defense Developer Gameplay
{STEAM_CLAN_IMAGE}/40663307/e40be6b78528d8502c47b33fcd2bc899df0311f3.pngRead full article on Community Announcements (Pixel General)AnnouncementsOfficial
U.F.O. K.O. Tower Defense Developer Gameplay
{STEAM_CLAN_IMAGE}/40663307/e40be6b78528d8502c47b33fcd2bc899df0311f3.pngRead full article on Community Announcements (Pixel General)Patch NotesOfficial
Update
{STEAM_CLAN_IMAGE}/40663307/afa93d5dc9fe017c4b83eb529426d3e499ba45e9.png July 28, 2021 Update Notes 1.09 Added a speed multiplier Updated musicRead full article on Community Announcements (Pixel General)
