"A fantasy d20-themed dungeon crawler", to quote DarkGod's comment. Inspired by Incursion by Julian Mensch. Made available under Open Game License. This is a non-profit fan project. No money is made. There are currently only two people working on the mod. However, we have released several beta versions so far.
As you can see, you can now tell at a glance whether the creature is friendly, neutral or hostile. Just like in ToME, you can switch off the borders (for example, for taking a screenshot) with a key press.