From Beyond: Tiberium

Update 4.21
Added various new gamerules for precise tiberium control, type gamerule tib and you will see all of them
Reduced crab spawn weight
Fixed some crystals exploding even when hit with sonic weapon
Buffed catalyst missile to clear configurable in config amount of chunks
Reworked parrying, no more explosions (only visual), made parrying s'rkyn projectiles to not bounce off and properly hit
Changed all commands to have tib_ prefix
Fixed mob infection not working correctly

tibcrabspawningchance - spawn chance of crabs (0 - 1000)
tiberiumalgaeactslikeroots - if true, algae can infect blocks like roots, not just water
tiberiumalgaespreadchance - chance of algae spreading successfully (0 - 1000)
tiberiumalgaespreadspeed - ticks between every algae spread chance, less - faster
tiberiumcrystalgrowthspeed - chance of a tiberium crystal growing on top of a root block, and chance of tiberium crystal growing bigger (0 - 100)
tiberiumexpiresspawn if true, some tiberium items can spawn crystals when item naturally despawns
tiberiumfloraspawnchance - chance of flora growing on top of root blocks (0 - 1000)
tiberiumgrowthspeed - chance of root successfully spreading (0 - 1000)
tiberiummeteorspawningday - default 0, if 0, value is automatically assigned, other values define on which day meteor will spawn