Shaper Monarch

To be clear, you can solo Geneforge 1 and 2 on torment (I did Geneforge 1 as an Agent and Geneforge 2 as a Guardian-Shaper Aligned-No Canisters). The difficulty is getting used to spending the enemies AP points by baiting them, avoiding battles where you're outnumbered and the usage of expendables. Both characters were melee, which can do absurd damages. I think I've tried shaper runs on torment, but the creations tend to be insufficient in damage output.