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Petri Leinonen
Petri Leinonen

49 Followers

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Mar 22, 2022

Distancing from the Frontier Myth (Them Deeper Bones design diary 12)

Them Deeper Bones is my retro adventure fantasy role-playing game that can be found over on https://themdeeperbones.com/ (as of writing this, version beta.1.5.0). You can get the full playtest documents and supplemental materials by joining the Them Deeper Bones discord. …

Ttrpgs

4 min read

Distancing from the Frontier Myth (Them Deeper Bones design diary 12)
Distancing from the Frontier Myth (Them Deeper Bones design diary 12)
Ttrpgs

4 min read


Dec 26, 2021

On 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 this, version beta.1.4.1). There is a short preview available on the site, and if that piques your interest enough, anyone can get the full playtest documents and supplemental materials by…

Ttrpgs

6 min read

On the First Year (Them Deeper Bones design diary 11)
On the First Year (Them Deeper Bones design diary 11)
Ttrpgs

6 min read


Oct 27, 2021

On Abilities (Them Deeper Bones design diary 10)

Them Deeper Bones is my retro adventure fantasy role-playing game that can be found over on https://themdeeperbones.com/ (as of writing this, version beta.1.3). …

Them Deeper Bones

5 min read

On Ability Scores (Them Deeper Bones design diary 10)
On Ability Scores (Them Deeper Bones design diary 10)
Them Deeper Bones

5 min read


Sep 17, 2021

On Perks (Them Deeper Bones design diary 9)

Them Deeper Bones is my OSR-adjacent retro adventure game that can be found over on https://themdeeperbones.com/ (as of writing this, version beta.1.2). …

Them Deeper Bones

4 min read

On Perks (Them Deeper Bones design diary 9)
On Perks (Them Deeper Bones design diary 9)
Them Deeper Bones

4 min read


Sep 9, 2021

On the retro adventure game mentality (Them Deeper Bones, design diary 8)

Them Deeper Bones is my OSR-adjacent retro adventure game that can be found over on https://themdeeperbones.com/ (as of writing this, version beta.1.2). …

Them Deeper Bones

4 min read

On the retro adventure game mentality (Them Deeper Bones, design diary 8)
On the retro adventure game mentality (Them Deeper Bones, design diary 8)
Them Deeper Bones

4 min read


Aug 10, 2021

On Worldbuilding (Them Deeper Bones, design diary 7)

Them Deeper Bones is my OSR-adjacent retro adventure game that can be found over on https://themdeeperbones.com/ (as of writing this, version beta.1.1). There is a short preview on the site, and if that piques your interest, anyone can get the full 245+ page long text by joining the game discord. …

Roleplaying Game

5 min read

On Worldbuilding (Them Deeper Bones, design diary 7)
On Worldbuilding (Them Deeper Bones, design diary 7)
Roleplaying Game

5 min read


Jul 8, 2021

On Initiative (Them Deeper Bones, design diary 6)

Been a while since I last wrote here, because I’ve been knee-deep in playtesting land. Them Deeper Bones is my OSR-adjacent retro adventure game. The current full text (as of writing, version a.9.1, the final Alpha version before the Beta playtest release) of Them Deeper Bones can be found in…

Roleplaying Game

4 min read

On Initiative (Them Deeper Bones, design diary 6)
On Initiative (Them Deeper Bones, design diary 6)
Roleplaying Game

4 min read


May 12, 2021

On the undead (Them Deeper Bones, design diary 5)

Them Deeper Bones is my OSR-adjacent retro adventure game. The current full text (as of writing, version a.8.0) of Them Deeper Bones can be found in Google Drive. …

Them Deeper Bones

4 min read

On the undead (Them Deeper Bones, design diary 5)
On the undead (Them Deeper Bones, design diary 5)
Them Deeper Bones

4 min read


May 9, 2021

On the Frames (Them Deeper Bones, design diary 4)

Them Deeper Bones is my OSR-adjacent retro adventure game. The current full text (as of writing, version a.8.0) of Them Deeper Bones can be found in google drive. In this diary I’m going to talk about Gameplay Framing, a thing that moved the project forward by a huge leap. First…

Roleplaying Game

5 min read

On the Frames (Them Deeper Bones, design diary 4)
On the Frames (Them Deeper Bones, design diary 4)
Roleplaying Game

5 min read


May 1, 2021

On Combat (Them Deeper Bones, design diary 3)

Them Deeper Bones is an OSR-adjacent retro adventure game I’ve been working on since December 2020. The current full text (version a.7.7 at the time of writing this design diary) can be found at https://themdeeperbones.com/. …

Them Deeper Bones

5 min read

On Combat (Them Deeper Bones, design diary 3)
On Combat (Them Deeper Bones, design diary 3)
Them Deeper Bones

5 min read

Petri Leinonen

Petri Leinonen

49 Followers

Game developer, cat owner

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