Voxeliq is a block engine crafted with C# that can be used to develop block based worlds with any type of gameplay you can imagine. Sandbox games, RPG's or even RTS games within a blocky world! Engine is still being developed & optimized for production though we already started kicking in our first games with it.
A video from voxeliq engine demonstrating speed with ~960 chunks and ~ 30 million blocks in view range.
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