O City

## Description

This ia a two players online game. In the arena, there are energy collectors, defensive towers, and barracks. Players could collect energy through energy collectors, defend against other players' offenses through defensive towers, and produce multiple units through barracks to help them fight. Players could control pets and multiple units to fight other players or acquire new buildings. Players could also occupy non-owned energy collectors to produce more energy. The collected energy can be used to convert buildings to each other. Players who receive the most energy win during the specified time, or players who occupy all buildings win.