diff --git a/spec/eientei/minecraft.nix b/spec/eientei/minecraft.nix
index a9b88b9f..a18a5e6b 100644
--- a/spec/eientei/minecraft.nix
+++ b/spec/eientei/minecraft.nix
@@ -12,6 +12,11 @@
     #  stop = "stop";
     #};
 
+    greedycraft = {
+      cmdline = "${pkgs.jdk8}/bin/java -Xmx10G -Xms10G -Xss4M -Dfile.encoding=GBK -Dsun.rmi.dgc.server.gcInterval=1800000 -XX:+UseG1GC -XX:+UnlockExperimentalVMOptions -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:+AlwaysPreTouch -XX:+UseStringDeduplication -Dfml.ignorePatchDiscrepancies=true -Dfml.ignoreInvalidMinecraftCertificates=true -XX:-OmitStackTraceInFastThrow -XX:+OptimizeStringConcat -XX:+UseAdaptiveGCBoundary -XX:G1HeapRegionSize=32M -jar forge-1.12.2-14.23.5.2855.jar nogui";
+      stop = "stop";
+    };
+
     nfwc = {
       cmdline = "${pkgs.jdk}/bin/java @user_jvm_args.txt @libraries/net/minecraftforge/forge/1.19.2-43.3.8/unix_args.txt";
       stop = "stop";