Tower Unite — is a unique online co-op game. It was based in part on the formula for Garrys Mod, a popular independent version of the Half-Life 2 mod that was published in 2006. The game was developed by the independent American studio PixelTail Games, which began its activities in 2009. Tower Unite debuted in 2016 on Steam Early Access. Tower Unite focuses on interaction between friends and casual entertainment in various types of mini-games. Each player gets his own personal apartment, which he can freely furnish, decorate and invite friends to it. We will meet random people in a special hub-square, from where we can move to other virtual spaces. Tower Unite owners can, for example, watch clips together on YouTube. Listen to audio recordings via SoundCloud, ride together, or participate in many seasonal activities.