A 6+ on any die (d6, d8, d10, or d12) is a success. Yes. A 10+ (obviously only on a d10 or d12) is a double success. Nothing happens per se, except that would mean something done very well, something important revealed you'd normally miss, a critical hit if shooting, etc. No math. 1 is a failure. On the actual Blade Runner dice this is the origami unicorn. No math. Just means you failed to succeed in whatever it was you were describing. The Game Runner will describe the consequences. An aside here: Players can re-roll (aka " push ") a roll they do not get a success in. One or both dice, but then stick with the next results (except a replicant player can reroll again). You can not re-roll a 1 though, it's fixed, and for every 1 you end up with (even after pushing) you suffer either a Physical or Emotional stress damage (think of those as your two types of hit points, but these can be (slowly) recovered during what's called Downtime in the game). Two failures (1s) on a player's normal roll of two dice means they've really messed up as there is no way to re-roll 1s. The dice are not added, no. never. They are simply used to show a success, two or more successes, or a failure. You use two dice normally, one for one of the characters four main Attributes, one for the Skill in that category (there are three in each of the four). Driving is a separate thing. A player's four Attributes and the 12 Skills are rated A/B/C/D which correspond to d 12/10/8/6. You tell the GR what you want to do, decide the Attribute and Skill that cover that action, and roll two dice that match the Attribute and Skill ratings. In my example above, a player has a base Agility attribute of B (so a d10) and a Firearms Skill under that of D (so d6) They roll a d10 + d6 and see if they get a success. If the player has some sort of Advantage in the situation, they'd gain an extra d6, if they are at some severe disadvantage they'd lose their lowest die and only roll the d10. So, normally, you'd roll two dice. Some combo of a d12, d10, d8, and a d6. Maybe a d10 and d12, maybe a d10 and a d6, or a d8 and d6. No modifiers ever either. The mechanics work modifiers differently, and not in the dice rolls. Thank you for asking all this, I hope it helped?