
Player Skills – specialize in skills such as food harvesting, farming, and preparation to feed yourself and the players near you. Justice System – collaborate on server-wide laws to the benefit of the whole world, then find and punish players who don't follow them. Collaborative City-Building – create buildings with specific purposes that offer bonuses, such as a home that keeps you fed while you're logged off, or a bakery that provides a way to process resources into food. Realistic Environment Simulation – enter a world with hundreds of plants and animals that interact and rely on each other in very specific, closely-related ways that can be affected by any action you make. The game's player-run economy is also highly collaborative, as each player can only specialize in a limited amount of skills, making it important for players to interact and share materials to complete high-level goals.
Players can propose, discuss, and vote on laws to collectively work towards keeping the environment safe, and if those laws are broken the player is tagged as a criminal and can be sought out for punishment by other players. Strict consequences exist for the in-game world, including server-wide perma-death as well as a player-controlled justice system. Players use finite resources from a fully simulated wilderness to construct a civilization with other players, where every decision affects the life of countless plant and animal species that reside within the game world. Eco is a 3D voxel survival/simulation MMO that focuses on the balance of a thriving civilization and a healthy ecosystem.