I think Elfboy's run did allow Guts, actually. I know we reached a consensus that I had the more "interesting" playthrough (in terms of challenge) and certainly Elfboy had worse equipment than me, so he must have been more lenient somewhere else (probably skills).
Anyhow: Desktop Dungeons--just got to Gauntlet level 40 in epic fashion. First attempt at 39, I was against Tower of Goo, I had Spiked Flail (50% knockback item), and the poison glyph, and...I just played things wrong. I needed to leave a roww of blocks near the boss to smash him through, and I kept absent-mindedly blowing up nearby blocks. I had poison and didn't begin chipping and poisoning as early as I could have. I was 8 gold short of buying a key item. I didn't use potions slightly earlier (when there were still nearby blocks to blow up, making physical attacks worthwhile). I would petrify an enemy just to have a knockthrough block, which I realized only at the end is less mana efficient than knocking into empty space and fireballing. And despite all this I was close: the boss had about 20-30 HP left (out of 938).
Next attempt, got the Spiked Flail again (this is a rare item I usually don't see) but otherwise generally weaker equipment, and was against Lord Gobb (overall better boss) and I narrowly won. Not that I didn't make some minor mistakes (like...Transmuters heal when they destroy a wall; I only found out today that this works with Spiked Flail. And I was using this combo against the boss, but I should have also used it against low level scrubs near walls to heal without mana). But minor mistakes aside, it's nice to get a real feeling that I just improved, that I executed much, much better than last time. Also gives me a good feel for how far I could go with this strategy (Gauntlet level 39 Lord Gobb is like...Gauntlet level 55 Jogurmander or Medusa or Iron Man. And like...Gauntlet level 70 Nine-Toes...).