SessionForge — Offline Game Master Toolkit
A downloadable tool
Your GM screen shouldn't need a login.
SessionForge is a complete Game Master toolkit in a single HTML file. Download it once, open it in any browser, and it works forever — at the table, on a train, in a cabin with no signal. No account. No subscription. No 'server unreachable' five minutes before your session.
WHAT'S INSIDE
- Initiative & Combat Tracker — initiative order, HP tracking, conditions and notes, turn highlight, round counter
- Dice Roller — d4 to d100, modifiers, one-click advantage/disadvantage, full roll history
- Instant NPC Generator — a name, a look, a personality trait, a voice hook to roleplay them, and a secret only you know
- World Generator — taverns with keepers and house specials, loot scaled to your party's tier, quest hooks, and travel encounters
- Session Notes — auto-saved on your device, exportable in one click. NPCs and generated content save straight into your notes.
WHY GMS SWITCH
- Truly offline. Everything runs locally. Your campaign is never uploaded anywhere.
- System-agnostic. Built for any fantasy RPG that rolls dice and tracks hit points.
- One file, every device. Laptop, tablet, phone, Chromebook — if it has a browser, it runs SessionForge.
- Pay once, own it. No subscription.
HOW IT WORKS
1. Buy and download the small zip. 2. Unzip, open index.html. 3. Run your session.
FAQ
- Do I need the internet after downloading? No. Not even once.
- Which systems does it support? Any fantasy tabletop RPG using dice, initiative and HP. Deliberately system-agnostic.
- Where do my notes go? Nowhere — they stay in your browser on your device. Export as .txt to back them up.
- Can I use it on stream / in actual-play videos? Yes — one purchase covers your table and your own commercial streams.
- Refunds are handled through itch.io per the store's standard process.
SessionForge is an original tool and is not affiliated with any game publisher.
| Published | 7 days ago |
| Status | Released |
| Category | Tool |
| Author | jinyhw |
| Tags | dice-roller, dnd-tools, game-master, gm-tools, initiative-tracker, npc-generator, offline, rpg-tools, system-agnostic, Tabletop role-playing game |
| AI Disclosure | AI Assisted, Code, Graphics, Text |
Purchase
In order to download this tool you must purchase it at or above the minimum price of $9.99 USD. You will get access to the following files:


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