Abyssal Evolution

Build a Deep-Sea Ecosystem That Runs on Its OwnAbyssal Evolution is a roguelite about deep-sea aquariums, ecosystem cultivation, and build crafting. Every run begins with just a handful of basic fish. Deploy new lifeforms, supply nutrients, gather Research Data, and shape your ecosystem from one experiment to the next. As your population grows, different species begin producing resources, empowering other fish, duplicating rewards, exploiting Pollution, and altering the behavior of the ecosystem around them. What starts as a quiet aquarium gradually transforms into a self-sustaining biological machine built on chain reactions and synergy.

You do not need to control every fish. Your real goal is to build an aquarium that starts working for you. Ten Experiments, One Complete CultivationEach run consists of 10 Experiments. Reach the Research Data target in each Experiment, then use the shop between stages to expand your population, acquire Equipment, and collect Research Samples that shape the direction of your current build. Some builds turn the aquarium into a high-speed feeding engine that rapidly builds Combo. Others focus on producing massive amounts of Bio Resource, while certain ecosystems deliberately operate under high Pollution in exchange for greater rewards.

As the Experiments progress, the aquarium becomes increasingly chaotic. Your goal is not to maintain a perfectly balanced ecosystem, but to make it powerful enough before it spirals out of control. Evolve the Fish. Mutate Them Further. Fish are more than units with different stats.…