Hello,
Constructo - Dungeons Builder was recently funded through the Kickstarter crowdfunding platform (project link: https://www.kickstarter.com/projects/playloopstudios/constructo-dungeons-builder ). This version is the Alpha of the project and the access codes are exclusively for our backers.
There is, however, an opportunity to access the Alpha through the late-pledge system: https://constructo.backerkit.com/hosted_preorders
We apologize for not writing this in the description (it has already been updated)
If you are interested in the project and would like to ask us questions, please consider joining our Discord server: https://discord.com/invite/gpAypMnjSY