
World Anvil
Kanka.io
RPG Builder
Narrantium
LegendKeeper
Obsidian
Scabard
One connected canon for your tabletop RPG campaign. NPCs, dungeons, maps, and a timeline that remembers every session. AI recaps you approve change by change. A focused alternative to World Anvil and Kanka.

Code Effects is the fastest and most intuitive .NET business rules engine trusted by government entities and Fortune 500 corporations all over the world

Website, pricing, platforms and company facts side by side.
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| Website | loomhold.com | codeeffects.com |
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| Company | Startup from the United States · 1 - 9 employees · 2026 | 2009 |
| Listed in |
In their own words, as submitted to SaaSHub.


LoomHold is a campaign manager and live-session tool for tabletop RPG game masters, built around one idea: your campaign should remember itself. Every NPC, location, faction, item, and thread lives in one connected canon. Every proper noun is a wikilink — names link to names — so you navigate...
Code Effects Software is the developer of state-of-the-art business rules engine that combines an incredible performance of rule evaluation with revolutionary web interface, allowing the end-users to author and manage their corporate business rules with no knowledge of programming languages or IT...
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When comparing LoomHold and Code Effects, you can also consider the following products.

World Anvil is a worldbuilding tool for Authors, Storytellers and worldbuilding lovers.
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The DM’s toolkit for D&D 5e — campaigns, worlds and NPCs in one place, beside the full SRD reference.
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Build branching tabletop RPG adventures with scenes, maps and combat, then run real-time multiplayer sessions with your players.
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LegendKeeper makes it easy to build immersive worlds for stories and RPG campaigns.
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A second brain, for you, forever. Obsidian is a powerful knowledge base that works on top of a local folder of plain text Markdown files.
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