1. How is this tool doing now in terms of development?
2. If I buy it on itch.io, will it affect my usage in Unity?
3. After purchasing, will future upgrades require an additional fee?
Viewing post in MAPGrid - 3D Tilemap/World Builder for Unity comments
1. The tool is slowly but surely getting closer to a solid 1.0 release. After being hired to work on it for an open-world multiplayer project, MAPGrid has seen a lot of improvement overall. All of these improvements not specific to open-world will eventually end up in the base version.
2. Buying on Itch.io should give you the exact same version as on the asset store, so no differences there.
3. Most new features will be free with the base package, with exceptions like the Open-World version, which is too structurally different to be compatible, and adds so much that it cost a small upgrade fee, because I have to eat to survive.
1. For the time being, yes, project will not be easily migrated to the Open-World version. I may release an migration tool after the open-world version is complete.
2. The advantage the base package has over the Open-World version is simplicity. Open-World development is vastly more complicated, and unnecessary if you don't need it.