Aldarc
Legend
It works well for SWN/WWN* as well as games like PbtA.I'm liking Travellers flat progression and 2D6 base more and more. Though, I will say I am a fan of bounded accuracy in D&D. Seems not only the deigning is easier this way, but also easier to understand and feel as a player/GM.
* Though SWN/WWN uses d20 for combat rolls.