The Welsh Piper offers tools for use in prepping games or at the table. These tools are free to use.
Premium versions of these tools with additional features and extended functions are included in The Sandbox Construction Kit, available on the Welsh Piper’s Patreon.
Create classed and non-classed non-player characters
Create random villages, towns, and cities
Create treasure hoards by Treasure Type
Customize monsters for your setting, export stat blocks
Figure out how much XP an adventure needs to advance the characters’ level
Plan specialist and mercenary costs
Calculate Basic and Detailed Encumbrance values quickly