Numenera...that the new Monte Cook RPG?
If it is, I'd like to hear what it's like cause the little I looked into, it looked very interesting.
Yeah, that's the one. The system is very simple compared to most that I'm familiar with, with a deliberate focus on flexibility and storytelling rather than rules or balance. The basics of the system are:
Every task has a difficulty between 0 and 10. Every difficulty has a target number three times higher (so a difficulty 1 task has a target number of 3, etc). Roll a d20 when attempting a task - if you hit or exceed the target number you are successful.
aaaaand that's basically it. Covers everything from combat to cooking. Skills adjust the difficulty up or down, stat pools can be used to apply effort and improve odds of success. There's other stuff that adds some complexity to it, but literally everything is distilled down to the GM deciding how difficult a task is, the player rolling a d20 to determine success.
So this isn't a system made for complex and balanced tactical combat. It's all about making sure the story is interesting and keeping the rules from getting in the way.