Minecraft is one of the most popular games of all time, and provides both entertainment and education to people around the globe. One of the main challenges in gaming is increasing the scalability of these games to support the large numbers of players they attract. Minecraft-like games make this challenge even more difficult by introducing the novel feature of a modifiable world. The world that players explore can be fully modified, allowing players to build anything from a recreation of Manhattan to a functioning digital computer. These modifications increase the need for communication between players, limiting scalability. We design and evaluate Meerkat, a prototype system that uses Dynamic Conits to reduce this communication and increase the scalability of Minecraft-like games.