TerraFirmaCraft is a hardcore take on Minecraft Survival. Knap stone tool heads from stone, forage for food and try to survive against the dangers of the night. Dirt and stone are affected by gravity. Goldpan and sluice for ore to forge your first bar of metal and work them into proper tools.
TFC can be daunting at first but once you get into it it's deeply satisfying.
TFC is a lot more resource intensive than other minecraft mods. If your game is crashing on startup try the following:
Make sure your graphics card drivers are up to date
Increase the amount of ram the launcher uses (gear icon in the top right)SERVER SETUP:http://wiki.terrafirmacraft.com/Installation#Server_Installation