After the election my wife asked me to run a combat heavy one shot RPG as a distraction, I've been burnt out a little on 5e D&D lately, so I decided to run 13th Age instead.
I like 13th Age for this kind of adventure/monster fighting combat heavy game because...
- It's basically D&D. I mean, it's not official Wizards of the Coast branded D&D(TM) but it's got a unified d20 mechanic like recent D&D, the classic classes, races and a lot of the feel.
- It's good at what it does and focuses on that. It's not the game I'd run if I wanted to run a social intrigue game (probably, right now, V20 Vampire the Dark Ages would win) or the game I'd run if I wanted a gritty game where the PCs struggled to survive (for now, that would probably be Shadow of the Demon Lord) but for a combat heavy game where PCs will have cool stuff to do during combat and you want a high fantasy feel it's an excellent choice.
- 13th Age PCs are surprisingly simple(ish). For the game I just used some pre-made 4th level characters (and recommend you do too) and they all fit onto a single page without needing a magnifying glass to read the type. Even if players make their own PCs, they really only need their class write up at hand to play and won't need to flip between multiple sections of the core book the way any of the spellcasting classes in 5e D&D do (and remember that 5 of the 12 classes of 5e have spellcasting and gain or can gain spells, though that Totem Barbarian who gets two spells as rituals won't need the book as much as the wizard, but still...)
- Icon Relationships, Backgrounds and One Unique Things encourage player investment, even for one shot characters.
- A few memorable one unique things from when I ran this...
- Renowned as a 'fuck-up'.
- Attracts random cats when she sings.
- Half of his face looks like a corpse.
So, without further ado, here is Corpse Chewer, a semi-improv, low prep 13th Age One shot. It's semi-improv because I'm providing the skeletal sketch of the plot arc and combat encounters but you can improvise the description of the dungeon and environs itself and some of the flavor bits can be tailored to the icon relationships the players pick.