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Hexaèdre

@hexaedre.bsky.social
31 followers 34 following 56 posts

He/Him. Happy husband, proud father, retired physicist, forever coder, and avid gamer. Interested in everything. Addicted to roleplaying game systems, so I have a considerable (and growing) collection…

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Hexaèdre @hexaedre.bsky.social · 08/10/2026
Version 1.9.300 of Star Systems is now released. Star Systems: hexaedre.com/apps/ss/ Release notes: hexaedre.com/apps/ss/#lates…
The Star Systems campaign panel is open. The campaign description, controls, and players’ list section are collapsed to make room for the notes section. One of the note is open showing the content and a PDF attachment.
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Hexaèdre @hexaedre.bsky.social · 05/10/2026
Version 1.8.295 of Star Systems is now released. Star Systems is a tool to help referees manage campaigns for the Traveller role-playing game. hexaedre.com/apps/ss/
The Traveller panel in Star Systems in dark mode. We see a list of crew members and a list of NPCs. One of the crew is selected, one Leon Silverstar, a recon specialist. Full characters sheet, stats, skills, weapons, armour, equipments, augments, finances, and notes.
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Hexaèdre @hexaedre.bsky.social · 28/09/2026
Travellers, both player-characters and NPCs, will come with the next update of Star Systems. #TravellerRPG #Traveller5 #SciFi #ttrpg #Traveller
Full character sheet for PC and NPCs. We see a list of the crew and NPC for the current location, and the details of one of the player-characters. He has taken one point of END damage.
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Hexaèdre @hexaedre.bsky.social · 22/09/2026
New feature allows you to incorporate Traveller characters into Star Systems. You can generate them elsewhere and input the data into the app, which is useful for player characters. Or you can use the package-based Traveller creation directly in the app, which is useful for quicker NPC creation.
The package-based Traveller creation shows the characteristics on top which can be rolled with or without boons, then the selection of background packages (Space Habitat is selected). At the bottom we see part of the career packages, with Agent selected.
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Hexaèdre @hexaedre.bsky.social · 11/09/2026
Version 1.6.285! Star Systems is a tool to help referees manage campaigns for the Traveller role-playing game or other science-fiction RPGs, such as Cepheus or Stars Without Number. The setting can be imported directly from the TravellerMap or created from scratch, or a combination of both.
The campaign panel of the Star Systems application showing the latest changes: power plant fuel management, improved layout, and a history of the process feedback given when actions are taken with any controls.
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Hexaèdre @hexaedre.bsky.social · 08/09/2026
I just received my copy of the Ars Magica Definitive Edition slipcase! Very nice! #arsmagica #ttrpg
A couple of pages from the Ars Magica Definitive Edition book showing the introduction. The pages are illuminated like an ancient tome.
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Hexaèdre @hexaedre.bsky.social · 02/09/2026
There is only one new thing in the latest update to Star Systems: you can update the app from within it without having to download it again. You’ll need to download this update of course, but the you can “Check for Updates…” #TravellerRPG #Traveller5 #SciFi #ttrpg #Traveller hexaedre.com/apps/ss/
The Star Map view of the Star Systems application showing part of the Deneb sector with the system pane open to the Tuwayk system.
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Hexaèdre @hexaedre.bsky.social · 02/09/2026
@jason-mythforged.bsky.social I see that you’re interested in Runequest. I made a character sheet for that. You might be interested. hexaedre.com/files/RQ_Chara…
The first page of a two-page landscape character sheet for Runequest.
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Hexaèdre @hexaedre.bsky.social · 31/08/2026
Today I released an update to HMK Toolkit, my application for HarnMaster Kethira, and the first release of Kèthîra Astro, an astronomy and astrology program for HârnWorld/Kèthîra. hexaedre.com/apps/KethiraAs… hexaedre.com/apps/hmk/ #HMK #HarnWorld #ttrpg #TTRPG
The Hârnworld sky shown in Kethira Astro.
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Hexaèdre @hexaedre.bsky.social · 24/08/2026
Must. Stop. Adding. Stuff… 😜 (Alt-text has some of the details) #Traveller #TravellerRPG #Traveller5 #SciFi #ttrpg
The latest iteration on the Campaign panel for the Star Systems app. Additions shown: a helper text showing the last action taken (‘Took off. Time advanced by 30m.’), badges for due maintenance and life support costs (x1 badge for one month due), a ‘Salaries dues (Cr2,000)’ button to show and process salaries, a button to open in-system travel times tool (on the left of the travel status picker), several buttons to add tasks times (landing, taking off, takes ship’s thrust into account, Astrogation roll to plot jump, searching for a broker, loading unloading cargo, takes the actual cargo tonnage and the presence or not of a cargo crane into account, etc.
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Hexaèdre @hexaedre.bsky.social · 23/08/2026
Teaser of the current state of the campaign panel in my Star Systems app for #Traveller. #Traveller #TravellerRPG #Traveller5 #SciFi #ttrpg
Part of the Star Systems app’s campaign panel which tracks the player characters’ location, the date and time, the group’s common credits, etc. The location drives the time to 100D transit, availability of refined/unrefined fuel, scooping opportunities, etc. Clicking on a player’s row opens the limited information tracked for each character, not a full character sheet, only stuff the referee wants to track, including skills and ranks used in the trade section for assessing availability of suppliers or passengers.
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Hexaèdre @hexaedre.bsky.social · 16/08/2026
The new ship design/validation tool for my Star Systems app is now completed. It supports both core and High Guard rules/options. You can use it to just validate a starship or you can save a full starship with a configuration, type, name, and description. You can also add one or more images.
The new “starships” section of the Star Systems app. It shows two designed ships, the “Cool Air Turbulence” and the “Laureline.” The Laureline is selected and we see part of its design configuration, its description and the three image thumbnails attached to it. Two of the images are open and visible to the right, showing the upper and lower decks of the ship.
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Hexaèdre @hexaedre.bsky.social · 16/08/2026
I’m working on a little something for my Star Systems app. It’s still not the final version, but it’s coming along nicely! #Traveller #TravellerRPG #Traveller5 #SciFi #ttrpg
A detailed spaceship design spreadsheet with sections for hull, armor, drives, power plant, fuel tanks, and cost analysis are shown. Additional sections aren’t shown but every design step from the High Guard book are covered.
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Hexaèdre @hexaedre.bsky.social · 08/08/2026
Latest version of Star Systems adds import/export of SEC files (both legacy and T5 for import, exports only to T5). Also adds campaign management, with the ability to have multiple campaigns in parallel. #Traveller #TravellerRPG #Traveller5 #SciFi #ttrpg hexaedre.com/apps/ss/
The campaign manager window showing two campaign selectors at the top, the BORD is selected, which is the the short code for the Borderland campaign. Follows a description of the campaign, then the current date, time, and location of the players (star system and body/planet). Then a list of players (player name, character name, and character crew role). Not shown but clicking on a player shows a panel with more information that is editable. Below the players’ list are the campaign notes. Three such notes are shown.
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Hexaèdre @hexaedre.bsky.social · 26/07/2026
I’m thinking about taking this as my vacation book.
The cover of Iain M. Banks first book in the Culture series called “Consider Phlebas.”
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Hexaèdre @hexaedre.bsky.social · 20/07/2026
New route planner between two systems that will land in the next update to my Star Systems app. #Traveller #TravellerRPG #Traveller5 #SciFi #ttrpg
The route planner showing a 11 jumps route between Drinax and Theev for a jump-2 ship.
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Hexaèdre @hexaedre.bsky.social · 16/07/2026
Why import TravellerMap data into an app instead of just using the web version of TravellerMap? Answer: so that you can make it your own. For example as I read about the Borderland I added the Wildeman Cluster region as described in the book. #Traveller #TravellerRPG #Traveller5 #SciFi #ttrpg
A section of the Borderland from the Traveller Map. It shows a cluster of star systems including the Wildeman system that stand outside regions of space identified as a faction.The same section of the Borderland from the Traveller Map but imported into the Star System app. It shows the cluster of star systems including the Wildeman system that is inside a region identified as a the Wildeman Cluster, as described in The Borderland book for Traveller.
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Hexaèdre @hexaedre.bsky.social · 14/07/2026
Working on a little travel time tool for both interplanetary travel time and time to the 100D limit for jump. This is per system, so you have all the bodies listed by orbit. This is for my Star Systems app. #Traveller #TravellerRPG #Traveller5 #SciFi #ttrpg
A tool to display travel time for the Corfu system (Spinward Marches, subsector Aramis). It shows the time to reach 100D from any of the bodies in the system for each of the thrusts from 1G to 6G, plus a ‘custom
thrust of 1.5G. At the bottom is a interplanetary travel time tool with a picker for a ‘from’ and a ‘to’ bodies with travel time listed.
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Hexaèdre @hexaedre.bsky.social · 12/07/2026
Version 1.0.190 of Star Systems released with the release notes on the application’s page: hexaedre.com/apps/ss/ #Traveller #TravellerRPG #Traveller5 #SciFi #ttrpg
The Star Systems main window showing the Aramis subsector of the Spaniard Marches and surrounding subsectors. The Aramis system card is shown, with additional bodies generated by the app on import from the TravellerMap (which doesn’t provide those, only their number).
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Hexaèdre @hexaedre.bsky.social · 09/07/2026
Preparing for the #Singularity campaign and tracing the Fortuna Ventura travel routes in the Core sector of the Third Imperium. #Traveller #TravellerRPG #Traveller5 #SciFi #ttrpg
The Core sector of the Third Imperium showing all the Fortuna Ventura liner routes.
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Hexaèdre @hexaedre.bsky.social · 04/07/2026
I’m working on a character creation flowchart for @mongoosepublishing.bsky.social #Traveller 2e. I love character creation in Traveller. #TravellerRPG #ttrpg
A character creation flowchart for Mongoose Traveller second edition. It starts with characteristics, then background skills, then an option for pre-career education or starting a new career, etc.
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Hexaèdre @hexaedre.bsky.social · 01/07/2026
TravellerMap vs my Star Systems app rendering of a portion of the Trojan Reach sector. #Traveller #TravellerRPG #Traveller5 #SciFi #ttrpg
TravellerMap rendering of the Belgardian Sojurnate region.Star System rendering of the Belgardian Sojurnate region.
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Hexaèdre @hexaedre.bsky.social · 29/03/2026
Coming to a HMK Toolkit near you… #Harnmaster #HMK #ttrpg #ttrpgs #TTRPG
We see a quick NPC generator for HarnMaster Kethira, following the rules from the book.
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Hexaèdre @hexaedre.bsky.social · 07/03/2026
New blog post. Some of the features of my own version of #HMK Toolkit, my macOS application for character creation and campaign management for the HârnMaster Kèthîra role-playing game. It’s been more than a year since I posted about this “full” version. hexaedre.com/hmk08/
A view of the campaign management panel of HMK Toolkit.
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Hexaèdre @hexaedre.bsky.social · 19/02/2026
I implemented impairments in my HMK Toolkit app for HârnMaster Kèthîra, then I added the ability to swap hands, because you might have impairments in one arm and want to use you other arm to swing your sword. Turned out to be pretty complicated but I really like the result! #HMK #HarnMaster #ttrpg
When a button is pressed the primary hand is changed from right to left. As this character is right-handed, it now applies the ‘offhand’ penalties to the spear instead of the roundshield. We can see indicators for the roundshield and spear that indicate in which hand they are.This is the same but with the spear now in the left hand and the roundshield in the right hand.
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Hexaèdre @hexaedre.bsky.social · 09/02/2026
I added a quick roller for HMK Toolkit, my HarnMaster Kethira application. It finds the EML, rolls the D100 and interprets the result either as a Skill Test or as a Skill Value Test. #HMK #HarnMaster #HarnWorld #TTRPG #ttrpg
A popover is shown for the Physician skill which has a ML of 60, but un EML of 63 due to a 5 perception penalty from armour and a 8 bonus from a blessing. The roll on the D100 is 20, which is a critical success. If this was a Skill Value test, the resulting SV is 7 (skill index 6 plus 1 from the critical success).
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Hexaèdre @hexaedre.bsky.social · 06/02/2026
A new tool for HMK Toolkit, my macOS app for HârnMaster: Roleplaying in the World of Kèthîra. It is used at character creation for mages (called Shek-P’var) to select their spells. #TTPRG #HarnMaster #HMK
A window of the HMK Toolkit app for HârnMaster Kèthîra that let’s mages (called Shek-P’var in HârnMaster) choose their starting spells, keeping track of Arcane Research Points, Chantry quality, etc.
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Hexaèdre @hexaedre.bsky.social · 30/01/2026
I’m experimenting with an implementation of the layer rules for armour in the HarnMaster Kethira TTRPG for my HMK Toolkit app. It was interesting to code and will be a very useful addition.
A screen capture of the second page of the character sheet. We see the list or armour articles and a popover window detailing the bulk this combination incurs and the reasons that caused it.
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Hexaèdre @hexaedre.bsky.social · 07/11/2025
The 1.1-year update Exactly 1.1 years ago I started working on HMK Toolkit and today I am releasing version 1.1. HMK Toolkit is a macOS application for character creation and campaign management for the RPG HârnMaster Kèthîra. Read more about it: hexaedre.com/apps/hmk/
The character sheet from HMK Toolkit of an alchemist character named Greyvelor.
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Hexaèdre @hexaedre.bsky.social · 02/06/2025
I’ve just released version 1.0.5 of my #macOS app for the HarnMaster Kethira #ttrpg, which now supports **Dark Mode**! You can download this latest version here: hexaedre.com/apps/hmk/#do... #HarnMaster #HMK
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Hexaèdre @hexaedre.bsky.social · 21/02/2025
I'm playtesting an adventure for HârnMaster Kèthîra. Looking forward to bringing this to the table! #ttrpgs #HarnMaster #HMK #HMKToolkit
The top of the character sheet for Eleanor, a Knight Bachelor character for the HârnMaster Kèthîra RPG.
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Hexaèdre @hexaedre.bsky.social · 20/02/2025
I just released an update to the public version of my HârnMaster Kèthîra RPG companion app, HMK Toolkit, with some fixes and some new features for the Initiative Rating Tracker. More information and documentation: ‪hexaedre.com/apps/hmk/‬ #ttrpg #HMK #HarnMaster #HMKToolkit
A picture of the Initiative Rating Tracker for HMK Toolkit. It shows three combatants and a couple of GM notes about how the session ended.
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