The T-Builder line uses PDF layers and form controls to let you lay various bits on top of a basic background. The Fireworld pack lets you place molten lava, rocks, adventuring gear, and other features on a ground layer resembling cooled lava. The system is not difficult to use once you get the hang of it, but it’s slow and cumbersome even for a skilled user. The results are serviceable, but not nearly as nice as those produced by an artist creating a specific tile. Still, the ability to customize is welcome, and it’s kind of fun to play with. The instructions try to help users master the T-Builder system, but the English composition/translation is occasionally very poor. You can’t save your work; this is not the publisher’s fault (and the publisher warns about this in the instructions, even highlighting the statement in red), but it does highlight the inherent limitations of publishing such a tool as a PDF. As a bonus, the publisher has included standees of a few elemental figures, but why is the crystalline/water elemental wearing boxing gloves?

The T-Builder is quite easy to use, it's just a matter of clicking on the options in the layered pdf menu. The graphics are pretty good, though somewhat in favour of a Diablo-style fantasy game (not too much scifi specific content). This doesn't matter much, as the vast majority of the graphics is universally useful and useable. All in all, the product is well worth the price, and I have no serious criticisms.