SCRY

Codex Cryptica is an AI-assisted worldbuilding and campaign management tool built around a living knowledge graph instead of a folder of loose documents. Every character, faction, location, and event you create becomes a linked entity, so your world stays connected and explorable as it grows. Genre-agnostic across fantasy, sci-fi, cyberpunk, horror, post-apocalyptic, western, steampunk, and more.

Inkroll is a web platform for playing tabletop RPGs play-by-post: asynchronously, in written posts, on each player's own schedule, with a human gamemaster running the table. It sits between heavyweight real-time VTTs and plain forum software; the writing stays the point, but the platform actually understands characters, dice, secrets, and the GM's role instead of leaving them on the side. It is also, deliberately, a beautiful place to spend a campaign. Inkroll was built by play-by-post players who wanted the game to read as well as it plays: a calm, candlelit page of ink and parchment where posts get the space of a book, quoted speech and images are cleanly styled, and every table can choose the look and post layout that suit its story. The tools stay out of the way until the moment a hand reaches for them, so a session feels like reading and writing a novel with friends, not operating software. Dice are typed straight into a post, like {Perception:1d20+2}, rolled once on the server the moment the post is published, then frozen, with a per-post audit the whole table can see, so a result can never be edited or quietly re-rolled. Players post as their characters, with portraits, versioned character sheets, and quick stat updates (hit points, spell slots, conditions) committed together with the post. GMs get sealed passages delivered to exactly the players they choose, chapters, scene notes with a world map and a per-chapter battle map, and live updates with typing indicators and read markers, so an asynchronous table still feels alive. Long campaigns are first-class citizens: the Chronicle keeps a running recap of every chapter and every character met, and answers questions from the campaign's own posts, so a returning player or a newcomer catches up in minutes. And because a campaign written like a book deserves to become one, a finished game can be exported as a designed, print-ready PDF or EPUB. Games already in progress can be imported from Myth-Weavers or Discord with posts, characters, images, and dice results intact. Ready-made sheets cover D&D Fifth Edition, Pathfinder 2e, Call of Cthulhu, Shadowrun, Cortex Prime, and Grimwild, plus a system-agnostic option and a builder for custom rulesets with their own dice mechanics. New systems are also gladly added upon request.

DiceCalc is a TTRPG dice managmeent system for players and GMs. Here's what it does: Roll all of a character's dice simultaneously — see every attack, save, skill, and modifier roll all at once via the Roll All mode with character tabs. Still reroll per macro — long-press any single roll to edit or reroll just that macro without rerolling the rest, even in Roll All mode. In-depth macro inspection — Roll Macro mode focuses on macro options, allowing players to inspect rolls, rename, edit, and sort the macro list. Sort order here is also preserved in Roll All mode. Cryptographically secure random number generation — higher unpredictability, more randomer. Sortable character tabs with up to 100 macros each — whether you're running or playing a campaign, organize by character, encounter, monster, game system, or any other way you like. Every major TTRPG dice mechanic in one app — keep high/low, target numbers (successes), botches, exploding dice, crit detection, multi-roll comma separation for staged (verification) rolls, and yes... push dice! Constraint validation with red-highlighted error feedback — pathological expressions are caught before they run, no infinite loops or broken math. Persistent 300-roll history with timestamps — every roll logged with full roll breakdown and no truncation. Tap-and-hold context menus throughout — edit, duplicate, delete, rename, reroll wherever it makes sense. Localized in 7 languages — English, Spanish, Portuguese, German, French, Italian, Polish, with complete in-app manuals for each. 14-page in-app user manual — every feature documented with examples, no need to leave the app. Supports Android 8.0 and above — runs on devices going back a decade. Custom QWERTY keyboard for macro names — with locale-specific diacritics via long-press. Independent horizontal scroll per output row — nerd out inspecting long expressions, results, and roll details without truncation. Also... I'm giving it away for free till 09/31/2026 11:59:59 (JST). Check the promo section of the website for details. Honest reviews are appreciated.

Fully Automated is an open source tabletop roleplaying game set in a solarpunk future. Dive into a wild, hard-science post-scarcity future and go on thrilling adventures across Los Angeles in the 2120s! Description The game is meant to allow players to go on street-level adventures in a solarpunk future. If you’re not familiar, solarpunk is a genre adjacent to cyberpunk, but which largely challenges and inverts most of its dominant themes. It envisions a world in which technology and our societies are brought into harmony with nature. It rejects cynicism about the futility of fighting to challenge power structures. In place of themes of scarcity and selfishness, it imagines abundance shared convivially. And in place of a nihilistic view that life is valueless, it imagines not just that every person is priceless, but that personhood can be granted to far more things than just humans. But while it is growing fast, tools for running solarpunk tabletop games are still too few.

Dune: Adventures in the Imperium is a tabletop roleplaying game of political intrigue, feudal warfare, and desert survival set in Frank Herbert's Dune universe, published by Modiphius Entertainment with lead designer Nathan Dowdell heading a large credited design team. It released in 2021, timed alongside Denis Villeneuve's Dune film, running on a version of Modiphius's house 2d20 System adapted specifically for the setting's politics-first, duel-heavy tone. The system is a setting-specific adaptation of Modiphius's 2d20 System, the same engine family behind Star Trek Adventures and Fallout: The Roleplaying Game. Description Players build elite agents in service to a noble House - Mentats, Swordmasters, Bene Gesserit Sisters, Spies, devious Advisors, or Fremen of the deep desert - and, before a single character is even built, the whole table designs that House together in a dedicated House-creation mini-game, deliberately keeping play away from the canon Houses Atreides or Harkonnen.  The Game Master runs missions where combat is only one of several ways a scene can go wrong: duels, skirmishes, open warfare, espionage, and courtly intrigue all resolve through the same underlying system, and a table can just as easily spend a session at a negotiating table as on a battlefield. The game leans hard into its source material's core promise - that plans, loyalty, and leverage usually matter more than a blade - and asks players to think as much about their House's long game as their character's next roll.

King Arthur Pendragon is a tabletop roleplaying game of Arthurian chivalry, tragedy, and multi-generational legacy, originally designed by Greg Stafford and first published by Chaosium in 1985. It's one of the hobby's oldest continuously-revised games, having passed through five earlier editions and several publishers (including Green Ronin's Arthaus imprint and Nocturnal Media) before returning to Chaosium, who released the 6th Edition in April 2024.  Stafford completed the design draft for this edition before his death in 2018, with longtime Pendragon line editor David Larkins overseeing it to print - a fact the game's own promotional copy leans into, framing it as the culmination of nearly forty years of Stafford's design thinking on the setting. Description Players take on knights of Arthur's Britain, sworn to a lord and bound by a code of chivalry the game asks characters - and players - to genuinely wrestle with rather than simply declare. The Game Master (GM) runs a campaign built to span decades of in-world time: between adventures, a Winter Phase resolves a knight's marriage, estate management, aging, and family events, and campaigns are explicitly designed to carry a player from their original knight's prime through old age and into playing that knight's own heir.  The game asks a lot of a table willing to commit to it - character death by old age is expected, not a failure state, and a knight's personal flaws are written onto the character sheet where they can force bad decisions at the worst possible moment. In exchange, it delivers something few other RPGs attempt: a genuinely generational campaign where a table can watch the consequences of one knight's choices land on their grandchild decades later.