Pick one for the selected slot.
It's a block game, but the blocks are triangular prisms, 1.5 m on a side and 0.75 m tall. Six meet at every corner, so the ground rises in terraces. Two prisms make a rhombus and six make a hexagon.
The island is generated from noise, so everyone gets the same one. It has hills and mountains, beaches, snowy peaks, caves, and oak and pine forests, with glowing crystal spires up high. The day turns while you play, and at night the crystals and lamps light up what's around them.
Follow the steps in the top left. Shards are hidden all over the island: in caves, on peaks, under the sea and at the top of every spire. The marker at the top of the screen points to the next one. Find ten and you can fly.
What you build is saved in this browser, so the island's how you left it next time.
PRISMCRAFTBuilding the island