Colostle is a solo RPGs that, instead of handing you a world, hands you a vast architectural impossibility and says, “Go on then. See what’s out there.” This new Bundle of Holding offer is a tidy little treasure chest of everything you need to get lost in Nich Angell’s world-sized castle, and it’s worth taking a moment to peer inside and appreciate what makes this setting so compelling.
Colostle’s central conceit is actually pretty simple: imagine a castle so large that each room contains entire landscapes. We’re not talking about metaphorical landscapes here. No, we’re talking actual mountains, oceans, cities, and weather systems, all tucked under ceilings so high they vanish into the clouds. It’s a place where a staircase might be the size of a mountain range, where a window could frame a desert corridor stretching for miles, and where the rafters above are home to winged predators who treat travellers like snacks.
It’s a setting built on the joy of scale. Everything familiar is made strange by sheer size, and everything strange feels like it belongs.
Mechanically, Colostle is a journaling game. A deck of cards becomes your oracle, prompting discoveries, encounters, and complications as you wander through the Roomlands. You decide how your character reacts, and you record the tale in your Roomlander Journal. It’s a format that rewards curiosity and the willingness to follow a prompt into unexpected territory.
The bundle includes the core rulebook plus rules for two‑player co‑op, which is a lovely addition if you want to share the exploration without losing the reflective, personal tone of solo play.




The offer is compact but generous:
- Colostle Core Rulebook: the full game, including co‑op rules
- Dungeons: delve into the castle’s underbelly
- Kyodaina: a far‑flung empire with its own flavour of colossal architecture
- Four Job Decks: Apothecary, Cartographer, Inventor, Researcher; print-and-cut prompts that deepen your character’s role and the stories you tell
Eight titles, all DRM-free PDFs, for US$14.95. Retail value sits at $62.50, so it’s a solid deal.
This bundle is a pretty neat entry point: everything you need to start exploring, plus enough expansion material to keep your journal busy for months. If you enjoy solo play, worldbuilding, or the quiet pleasure of discovering a place that feels both ancient and impossible, Colostle might just be worth your time.
You can check out the bundle by clicking here to visit Bundle of Holding.
