Updated to V4.30
2026-07-24 18:53 UTC · Community Announcements · Dungeon Software US
Fixed: It was possible to enable a Feature (DLC) in Settings without having purchased the Feature.Several display issues on the MacOS version.
The Computer Game draws the maps and processes the adventure sheets, allowing you to sit back, relax and enjoy the story being created. Plus you will have professional looking maps to print out and keep for years to come.
| App ID | 1384790 |
|---|---|
| App type | Game |
| Developer | Steve Weinrich, Martin Knight |
| Publisher | Dungeon Software US, LLC. |
| Release date | 2020-09-14 14:47 UTC |
| Release state | released |
| DLC list (appinfo) | 1447770,1853770,2148300 |
| Store page | store.steampowered.com/app/1384790 |
| Last store refresh | 5 hours ago |
Launch options
| # | Executable | Arguments | OS | Description |
|---|---|---|---|---|
| 0 | D100-Dungeon.exe | windows | ||
| 1 | D100-Dungeon.app | macos |
No player history yet. This app is now tracked, so data will appear within about ten minutes.
| Playing now | Not polled yet (never) |
|---|---|
| 24-hour peak | |
| All-time peak (tracked) |
Regional prices
All Steam store regions, converted to USD at today's exchange rate, compared with the US price. Lowest is the lowest price SteamRaw has recorded for that region.
Loading regional prices…
Price history, US store (USD)
| Date | Price | Regular | Discount |
|---|---|---|---|
| 2026-09-11 22:24 UTC | $12.99 | $12.99 |
| DLC | AppID | Release | Price |
|---|---|---|---|
| No DLC known for this app. | |||
Branches
| Branch | Build ID | Description | Updated | Password |
|---|---|---|---|---|
| public | 24189606 | 2026-07-24 18:53 UTC | ||
| v2-production | 7139312 | The last production version of V2. | 2023-01-09 16:12 UTC | |
| test | 24189606 | Testing | 2026-07-13 20:08 UTC | |
| v3-production | 19818244 | The last production verson of V3. | 2026-03-02 22:14 UTC |
Depots
| Depot | Name | OS | Size | Download | Public manifest | Notes |
|---|---|---|---|---|---|---|
| 1384792 | windows · 64 | 1.79 GB | 641.31 MB | 1897842692452413638 | branches: v2-production, test, v3-production | |
| 1384793 | macos · 64 | 1.81 GB | 648.93 MB | 1586059279352590153 | branches: test, v3-production |
A build is one published version of the game's files on a branch. Steam assigns a new build ID every time the developer pushes an update, so this list is the update history of the app. The files inside a build (depot manifests) are only readable with an account that owns the game, which SteamRaw does not have yet, so build contents are not shown.
| Build ID | Branch | Updated | First seen |
|---|---|---|---|
| 24189606 | public | 2026-07-24 18:53 UTC | 5 hours ago |
| 24189606 | test | 2026-07-13 20:08 UTC | 5 hours ago |
| 19818244 | v3-production | 2026-03-02 22:14 UTC | 5 hours ago |
| 7139312 | v2-production | 2023-01-09 16:12 UTC | 5 hours ago |
Every appinfo change SteamRaw has observed, grouped by changelist. Tags, features, languages, builds, depots, prices and any other key Steam publishes. Tracking since 2026-09-11 22:24 UTC.
No changes recorded since SteamRaw first saw this app. Every future PICS change will be listed here.
| Changelist | Apps | Packages | Seen | What changed |
|---|---|---|---|---|
| No changelists recorded for this app yet. | ||||
Steam Deck Compatability
2026-05-01 13:54 UTC · Community Announcements · Dungeon Software US
Recently, Steam has reviewed all games to see how well they function on the Steam Deck. If you are not aware, the Steam Deck is a hand-held device running a Windows compatable OS. It has a 7.4" diagonal screen and is intended for twitch style games. Steam has determined that The D100 Dungeon Computer Companion will function on the Steam Deck, but that there will be difficulty reading the text. While is appears to be a very nice device, we do not support the Steam Deck at all. The Computer Companion was designed to run on desktops and laptops. Further, we do not own a Steam Deck, so we have no
Version 4
2026-03-02 22:15 UTC · Community Announcements · Dungeon Software US
We are very excited to announce that the Computer Companion has been updated to version 4.This is an entirely new version that introduces exciting new features and support for The Lost Tome of Extrordinay Rules.Version 4 is a free upgrade from version 3. It will automatically upgrade the adventurer file to version 4. (The version 3 adventure file will be saved as "\.xml.V3 - or .V2 as appropriate".) The Lost Tome of Extraordinary Rules is available on Steam as a DLCs which can be purchased using the Steam console or withing the game (Settings/Features). Note that like the Computer Companion, t
Beta updated to V4.29
2026-02-16 00:28 UTC · Community Announcements · Dungeon Software US
FixedThe Witchery create dialog (duing BYNQ) was not functioning.The extra button (usually labeled Open Door) was missing when selecting an exit.
Beta updated to V4.28
2026-02-02 19:05 UTC · Community Announcements · Dungeon Software US
FixedThe property security roll and subsequent reset have been moved from the end of the quest to the beginning of the BYNQ. This permits the upgraded security value to be used during the security roll.The settings/features were not being restored correctly from the settings file. All three features were being set based on the purchase setting for The Adventures Companion.Table TC Spell Book and Table TD Spell Books were not counting as treasure for quest completion. Note that this was an issue introduced in V4.Quest The Lost Grimoire (Table QA) could not be completed due to spells not trigger
Beta updated to V4.27
2026-01-21 22:57 UTC · Community Announcements · Dungeon Software US
Fixed: When a Table T armour or a weapon item is acquired the stored name was including the Blast Door or Arcane Energy indicators. This has been removed so that there is no duplication of the indicators.The entries for Table W Maul and Half Maul were reversed.Table Q Wrongful Ritual was not handling the end-of-quest test correctly.During the quest completed test, Table Q Return of the Crown was not testing correctly for the two adventurer rolled encounters. Note that this fix will work unless the quest is started after this fix is published.
The Lost Tome of Extraordinay Rules DLC is now available
2026-01-12 16:23 UTC · Community Announcements · Dungeon Software US
We apologize to everyone that The Lost Tome of Extraordinary Rules DLC was not available after the previous anouncement. We forgot about Steam's review process for new DLC's. It is now available on the store! The Companion version that was previously announced was 4.25. It has been updated to V.26 with the following changes:FixedWhen right clicking on an item in the belt and choosing "Move to backpack", it was always moving to the first backpack slot instead of any available slot.A crash when right clicking on an item in the belt and choosing "Move to On the Ground".During the monster's reacti
Version 4 Beta
2025-12-25 17:39 UTC · Community Announcements · Dungeon Software US
We are very excited to announce that Version 4 of the Computer Companion is now available for beta testing.This is an entirely new version that introduces exciting new features and support for The Lost Tome of Extrordinay Rules.Version 4 is a free upgrade from version 3. It will automatically upgrade the adventurer file to version 4. (The version 3 adventure file will be saved as "\.xml.V3 - or .V2 as appropriate".) To get the new version, start the Steam console and select D100 Dungeon Computer Companion. Select the Manage button (the gear icon) and then "Properties...". Select BETAS (on the
Updated to V3.76
2025-09-02 00:42 UTC · Community Announcements · Dungeon Software US
Fixed: In the Monster Ate My Mum! quest, after finding the second objective area, one rolls 1d10+90 for an encounter. This was adding the quest's Encounter Modifier, which was not supposed to be added. When rolling for an encounter, the roll plus the encounter modfier plus any roll modifier is supposed to be limited to 100. Instead, it was being limited to to the roll limit (10 in the case of 1d10).
Updated to V3.75
2025-07-27 23:51 UTC · Community Announcements · Dungeon Software US
Fixed: The Giant Snake had a reward of 10 instead of 100 GP.There were two map Legacy Tiles (rolls 30 and 91) that were not being displayed correctly.
Updated to V3.74
2025-04-26 19:54 UTC · Community Announcements · Dungeon Software US
Changed: All page number references within The Adventure's Companion have been removed to account for the various versions of this book. Fixed: When failing the Crossfire Trap test, HP was being incremented instead of decremented. There was a crash when attempting to choose a map area when using Transportation. When the fourth green area is found when playing The Northreach Campaign - "The Burial Grounds of the Resting", The Mystic Pool was not being added to the area. This was causing the geographic roll to take place, which was supposed to be overridden.
Updated to V3.73
2025-04-08 17:43 UTC · Community Announcements · Dungeon Software US
Fixed: The V3.72 fix to the Investment Roll did not multiply the adjustment by the number of shares. This corrects that. As a result, holding only pips of an investment will not qualify as holding shares. This is now a correct implmentation of the rules.
Updated to V3.72
2025-04-07 01:37 UTC · Community Announcements · Dungeon Software US
Fixed: The Investment Roll now follows the rules and only makes changes to investments where the adventurer owns some shares or pips.
Updated to V3.71
2025-03-31 17:56 UTC · Community Announcements · Dungeon Software US
Fixed: When blasting a door with a weapon and a miss occurs, the damage to the weapon was being decreased instead of increased. During the Before Your Next Quest phase, both the Investment Roll and the Empire Building dialog were doing incorrect calculations. Within The Dragon Armour paragraph 77, choosing to accept the penalty will no longer loop. There was an error in the overriding encounter table for the Adventure's Companion Campaign Quest 20 - Urackhire, City of Goblins There were some errors in the overriding encounter table for the Adventure's Companion Campaign Quest 11 - The City of
Updated to V3.70
2024-06-18 22:23 UTC · Community Announcements · Dungeon Software US
Fixed: The Lightning spell was not being initialized correctly therefore the damage roll was not occurring at the start of the next combat round. This now functions correctly.
Full appinfo as delivered by Steam PICS, changenumber 38432605. Also at /api/app/1384790/raw.
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