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.

Gamma World is a post-apocalyptic science fantasy roleplaying game created by James M. Ward and Gary Jaquet, first published by TSR in 1978. Over more than four decades the game has been rebuilt from the ground up seven times by nearly as many publishers, and the most recent overhaul came in 2010, when Wizards of the Coast released a stripped-down, card-driven edition built on a pared-back version of the Dungeons & Dragons 4th Edition engine.  Where D&D sends heroes out to save a kingdom, Gamma World drops mutant scavengers into the wreckage of a shattered Earth to fight over technology nobody left alive still understands. Description Gamma World is gonzo by design. A character isn't built so much as collided into existence: two randomly rolled Origins get mashed together into one being, however little sense the combination makes ("I'm a Radioactive Yeti," to use the game's own example). From there, characters spend the session drawing from decks of mutation and salvage cards that shift constantly - the powers a character has at the start of a fight are rarely the ones they'll have by the end of it.  Combat is lethal and character turnover is high, so the game leans into its own chaos rather than fighting it: sessions play fast, tonally silly, and are built to be picked up and put down in a single evening rather than carried across a long campaign.

Mothership is an action-packed mixture of sci-fi and horror themes, combined into a streamlined gaming system about surviving in the cold, deadly vacuum of space while everything around you is trying to kill you. All at the same time as you are fighting (or fleeing from) alien creatures who aren't there to make any new friends. Chaos. It was published by Tuesday Knight Games and released in 2024.  It is a survival horror system designed for one-shots and campaigns, inspired by classics like Alien, Event Horizon, and Pandorum. Famous for its streamlined ruleset and award-winning graphic design that prioritizes ease of use at the table. The game, at the same time simplistic and streamlined in design, will challenge the characters at all times, allowing the game to focus on the storytelling and less on having complicated rules. The system it is inspired by is Old School Renaissance Description In Mothership, players take on the roles of blue collar workers in space, such as Teamsters, Scientists, Androids, and Marines. You are not powerful or heroic soldiers; you are vulnerable humans trapped in high pressure environments with alien monsters, failing life support systems and the crushing weight of corporate greed. The game is designed to be fast-paced and unforgiving, where the primary goal is not to win, but often enough - to survive. System Overview & Key Features d100 Percentile Resolution In the core of the game system is the d100 percentile system. Roll two d10 dice and get a number from 00 to 99. Success means rolling a lower result than your character's appropriate stat or skill for the task. Rolling a double, like 11, 22, or 33, is considered a critical success if it succeeds or a critical failure if it fails. Rolling low is the target for survival. Stress and Panic As characters encounter horrors or suffer trauma, they accumulate Stress. When a character experiences a terrifying event or rolls a critical failure they must make a Panic Check. The more Stress they have, the more likely they are to suffer a catastrophic mental breakdown, ranging from a heart attack to a violent psychotic break. The Save System Instead of a long list of saving throws, characters have four primary Saves: Sanity, Fear, Body, and Armor. These are used to resist different types of potential trauma. Fear saves are rolled to keep your cool under pressure, while Sanity saves represent your ability to process alien truths without losing your mind (think lovecraftian horrors). Class Based Skills The game features four distinct classes. Marines are obviously combat focused, Teamsters are pilots and laborers, Scientists are experts in medicine and biology, and Androids are cold calculating, yet efficient machines. Each class has it's unique starting stats and specific triggers for when they gain or lose Stress, which is based on their personality. Lethal Combat and Healing Combat is extremely dangerous and often a last resort. Weapons are likely to deal potentially excessive damage when compared to a character's total healthpool. Healing will be slow and require resources that are hard to come by in the middle of the constant crisis, making every injury feel like a significant threat to the character's chances of making it out alive. Deadly Ship-to-Ship Combat The game includes a streamlined system for starship encounters. Ships have their own stats and modules that are likely to be damaged during a fight. Players must work together to manage various roles and stations, like Engineering or Piloting, to keep the ship's hull from breaching while under fire or fleeing from cosmic anomalies. Additional links tuesdayknightgames.com - Official Tuesday Knight Games website mothershiprpg.com - Official Mothership portal and digital resources

Nav-Fi³ is a web-based campaign companion for the Traveller RPG, covering both the classic Third Imperium setting and Mongoose's 2300AD. Run your ship like a real operation: a time-aware financial ledger tracks income, costs, mortgages, and crew payroll against each vessel's account, with automatic PENDING/POSTED transitions synced to your campaign's calendar. Plot jump routes on an interactive TravellerMap-integrated navigator, manage cargo holds and speculative trade, and let The Cube (or 2300AD's The Link) generate freight, passenger, mail, salvage, and prize contracts on demand. Multi-user by design: a Referee can grant players granular access to piloting, cargo, or finance on a per-ship basis, suspend and reinstate them without touching the roster, and everyone logs in with Google or Discord (2FA supported). Crew records track status over time — active, MIA, deceased — and every session's changes surface in an automatic "Since Last Session" recap. Two settings, one interface: pick Traveller (with full Milieu/era support) or 2300AD (Gregorian calendar, Stutterwarp drives, colonial nations) from the sidebar — same tool, faithfully adapted rules underneath.