
Devour fish, evolve tentacles, and become the ocean’s apex predator in this colorful underwater action adventure.
Price history tracked since Jul 7, 2026 · vs all tracked offers.
Based solely on tracked price history — not purchase advice.
Tracked since Jul 7, 2026.
Steam Train Fest starts Jul 20, 2026
Try this game before buying.
Unleash the Kraken Within. Rule the Deep.
In Octopus Invasion, you play as a ravenous octopus with one goal—devour, evolve, and dominate the ocean. What begins as a tiny tentacled creature quickly spirals into a full-blown undersea invasion as you feast your way up the food chain. Explore vibrant underwater worlds, unlock devastating upgrades, and become the apex predator of the deep.
This isn't just a game—it's a feeding frenzy.
Start small and grow huge by consuming everything in your path. Every fish you eat gives you experience and resources that unlock new mutations—from extra tentacles and increased speed to special abilities like ink bombs or stingray minions.
Explore six unique biomes—from colorful coral reefs to dark abyssal trenches. Each zone introduces new challenges, prey, and hidden secrets waiting to be discovered. Complete quests, unlock secret zones, and find rare creatures lurking in the depths.
Shape your octopus to fit your playstyle:
Upgrade swim speed, attack power, and tentacle count
Deploy autonomous stingray minions for passive resource gathering
Customize your evolution path—speed demon, brute force, or survivalist?
Not everything goes down easy. Prey may flee, fight back, or outsmart you. Use tactics and power-ups to outmaneuver and overpower tougher enemies—including schools of fish and predatory sharks.
Supports both Landscape and Portrait play
Compatible with Mouse, Keyboard, or Controller
Optimized for Steam Deck with easy-to-pick-up controls
🎣 30+ sea creatures to hunt and consume
🧬 Endless upgrades and evolutionary paths
🌍 Open underwater world exploration
🐠 Stunning stylized 3D visuals and fluid animation
🗝️ Quest system with keys to unlock new content
🧩 Casual core, deep progression
🎮 Relaxing, family-friendly gameplay with survival elements
Are you ready to rise from the reef and dominate the deep?
Download Octopus Invasion and start your underwater reign today.
Lowest tracked price: CA$6.49 (Jul 7, 2026) · current best: CA$6.49.
29% positive reviews all-time.
Right now the cheapest offer for Octopus Invasion is CA$6.49 at Steam. KingsPrice compares 1 offers from 1 stores — official stores and keyshops — and refreshes prices throughout the day.
The lowest price KingsPrice has tracked for Octopus Invasion is CA$6.49 (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.
Create a free price alert on this page and KingsPrice will email you when Octopus Invasion 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.