Petri LeinonenDistancing from the Frontier Myth (Them Deeper Bones design diary 12)The Frontier Myth is strong in the traditional Fantasy TTRPG paradigm, but my personal cultural touchstones are different…4 min read·Mar 22, 2022----
Petri LeinonenOn the First Year (Them Deeper Bones design diary 11)Them Deeper Bones is my retro adventure fantasy role-playing game that can be found over on https://themdeeperbones.com/ (as of writing…6 min read·Dec 26, 2021----
Petri LeinonenOn Ability Scores (Them Deeper Bones design diary 10)Them Deeper Bones RPG does some significant changes to how Ability Scores work from a lot of other OSR games that draw on the legacy of D&D5 min read·Oct 27, 2021----
Petri LeinonenOn Perks (Them Deeper Bones design diary 9)In Them Deeper Bones, the Perks are not really superpowers, but actually a tool to gauge where you want to put an extra safety net in…4 min read·Sep 17, 2021----
Petri LeinonenOn the retro adventure game mentality (Them Deeper Bones, design diary 8)Writing about the difference between the OSR and the Retro Adventure TTRPG that Them Deeper Bones is.4 min read·Sep 9, 2021----
Petri LeinonenOn Worldbuilding (Them Deeper Bones, design diary 7)Building a world to a retro adventure game of post-post-apocalyptic fantasy, and some thoughts on the ways I cheated while doing it5 min read·Aug 10, 2021----
Petri LeinonenOn Initiative (Them Deeper Bones, design diary 6)Thinking about TTRPG initiative through the lens of the OODA loop decision making process.4 min read·Jul 8, 2021----
Petri LeinonenOn the undead (Them Deeper Bones, design diary 5)I found out I have an issue with the way I had written the zombies and the skeletons in Them Deeper Bones, my OSR TTRPG..4 min read·May 12, 2021--1--1
Petri LeinonenOn the Frames (Them Deeper Bones, design diary 4)Them Deeper Bones, the OSR-adjacent adventure tabletop RPG, is, since version a.8.0, been built on the idea of four Gameplay Frames…5 min read·May 9, 2021--1--1
Petri LeinonenOn Combat (Them Deeper Bones, design diary 3)3rd design diary on Them Deeper Bones OSR-like TTRPG. I take a look at combat and why I’ve built it without the HP grind. Also…5 min read·May 1, 2021----