A browser-based crystal PvP trainer. Drill Minecraft crystal combat solo or against a friend — no Minecraft install, no beefy PC, no dependencies. Just open a tab and fight.
Drill crystal placements and timings against bots at your own pace, whenever you have a spare five minutes and a browser tab.
Send a link, jump into a room together, and go head-to-head — same crystal PvP mechanics, zero setup on either end.
No Minecraft, no launcher, no download, no powerful GPU. If it can open a browser tab, it can run OpenCrystal.