Growtopia is a free-to-play massively multiplayer online sandbox game where players can build, craft, and explore in a 2D pixel-art world. Players break and place blocks to construct their own worlds, grow trees by splicing seeds together, and trade items with others in a player-driven economy.
The game's signature feature is its seed-splicing mechanic, which lets players combine two seeds to create new types of blocks, items, and decorations. Worlds are player-generated and can be locked for private use or opened to the public, fostering a creative and social community.
Originally created by indie developers Seth Robinson and Mike Hommel (Robinson Technologies / Hamumu Software), Growtopia launched in 2012 and was later acquired by Ubisoft in 2017. It remains one of the most popular mobile and PC sandbox titles, with a large active player base and regular content updates.