RIOO
The goddess of water who summoned you is nowhere to be found. Facing a tidal wave of monsters, you must join forces with other brave people who were summoned like you to repel them! Find the best combination of various strange weapons to survive the waves of attacks!
Offers
What are keyshops?About RIOO
Game Features:
Fast-paced survivor game
4 different anime style characters to choose from!
Up to six weapons to equip, find the best combination to match and blow up all the monsters!
High-pressure survival rhythm, every choice you make may affect your strategy against the next wave of enemies.
Game details
Game details
Age ratings
Game modes
Languages
Features
RIOO price history
Lowest tracked price: €0.99 (Jul 7, 2026) · current best: €0.99.
RIOO reviews
82% positive reviews all-time.
RIOO — frequently asked questions
Where can I buy RIOO at the cheapest price?
Right now the cheapest offer for RIOO is €0.99 at Steam. KingsPrice compares 1 offers from 1 stores — official stores and keyshops — and refreshes prices throughout the day.
What is the lowest price RIOO has ever been?
The lowest price KingsPrice has tracked for RIOO is €0.99 (recorded on Jul 7, 2026). This covers the stores and period we monitor — set a price alert to catch the next drop to that level.
How can I get RIOO at a discount?
Create a free price alert on this page and KingsPrice will email you when RIOO drops below your chosen price. The biggest discounts usually appear during seasonal Steam sales and publisher promotions — the sale calendar on this page shows the next confirmed event.
System requirements
Minimum
- Requires a 64-bit processor and operating system
- OS *: Windows 7, 8, 10, 11
- Processor: Dual Core+
- Memory: 2 GB RAM
- Graphics: 1 GB RAM
- Storage: 1 GB available space
Recommended
- Requires a 64-bit processor and operating system
