code/modules/power/supermatter/supermatter_variants.dm 
| /obj/machinery/power/supermatter_crystal/hugbox | Normal SM with it's processing disabled. |
|---|---|
| /obj/machinery/power/supermatter_crystal/engine | Normal SM designated as main engine. |
| /obj/machinery/power/supermatter_crystal/shard | Shard SM. |
| /obj/machinery/power/supermatter_crystal/shard/hugbox | Shard SM with it's processing disabled. |
| /obj/machinery/power/supermatter_crystal/shard/engine | Shard SM designated as the main engine. |