There are a few minor bugs in TOME 4, as well as confusing interface issues. I was unable to scroll the windows with the mouse, but keyboarding up and down them worked fine. Some features, such as showing the list of monsters known, produce a message indicating they are working but don't do anything currently (I confirmed this is a known bug and not me doing something wrong.) There is a wiki which provides documentation, but it is sparse and acknowledges its incompleteness in several places. As with many games produced as labors of love, players must be prepared to roll their sleeves up and do a little work and research in order to get the most from the game. This sense of community can be part of the appeal.

TOME 4 was created with the (included) TE4 engine, and it1s possible to completely modify TOME, or to create your own custom roguelike. The engine documentation is extremely sparse, though, and there are several query threads in which the best answer given to some problems is to look at TOME's source code and reverse-engineer it to figure out how to accomplish a given task.

As a completely free download, the only thing you risk trying TOME4 is some time.Based on my experience, you will risk losing a lot more time if you like it, as it can have that "just one more minute" addictiveness that keeps you up many minutes more than you have.