Screenshots
Watch trailer on Steam ↗Ultimate Waifu Battle Online
callysgames · Published by callysgames
4 user reviews — 50% positive (4 reviews)
Last updated 27 Sept 2026
UWBO is a Tower Defense game about some cute waifus that try to prevent the invading monsters from absorbing the energy from the Energy-Crystals. Play it in coop mode with your friends to help each other and of course the cute helpless girls.
£2.49
Lowest price we've ever recorded
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Price history
Action, Indie, Strategy, Casual · 2022 · More under £5 games
Engage in strategic battles to protect your waifus from monstrous threats in Ultimate Waifu Battle Online. Developed by callysgames and released in 2022, this action-packed game offers cooperative gameplay for a shared victory.
About this game
What you can expect
- You shoot the monsters, build turrets and help each other to prevent the monsters from destroying the Energy-Crystals.
- You can select different maps to defend the world from the monster invasion.
two gamemodes
- classic tower defense
- competetive defense mode to see which team can survive longer
System Requirements
Will my PC run this? →Minimum
- OS *: Windows 7, 8, 10 - 64 Bit
- Storage: 15 GB available space
Recommended
- OS: Windows 10 - 64 Bit
- Storage: 15 GB available space
Supported Languages
*languages with full audio support
Latest news
Patch NotesOfficial
Fixed some issues
Weapon on game start not available fixed Turret placement fixedRead full article on Community Announcements (cally)Patch NotesOfficial
Currently not playable. Will be fixed until this evening.
If you play the game and are wondering why you don’t have a weapon. It’s because there is currently a issue that will hopefully be fixed until this evening.Read full article on Community Announcements (cally)
