Niche Shift is a free Puzzle game you can play instantly in your browser, with no download and no registration. How to play: Mouse click or tap to play. It renders at 800 by 600 pixels and scales to your window. It joined SaGo Games on October 29, 2026. It is an HTML5 build, so it loads in any modern desktop or mobile browser.
Dive into the Deep Blue! Niche Shift is a deceptively simple strategy puzzle that challenges you to build a thriving ocean ecosystem. It starts with a simple swipe: merge Plankton to create Krill, merge Krill to create Fish, and evolve your way up the food chain to the legendary Leviathan. But the ocean is a dangerous place. Unlike standard merging games, your creatures have needs. The Twist: Hunger & Balance High-level predators (Level 3+) arent just tiles—they are living creatures. Every time you move, they get hungrier. You must merge them to feed them, or they will starve and turn into Bones—useless obstacles that clog your re