This unnamed Angband is based on the Angband pre-2.9.1 code, with
modifications. It incorporates the monster light patch by Dr
Andrew White.

In particular, unnamed Angband adds an additional 196 features
to the dungeon, including new traps, water, ice, lava, boiling
mud and water and chasms. These are detailled in f_info.txt and
defined using additional fields and flags documented in the same
file. Monsters should be able to traverse various terrain types
depending on additional flags in r_info.txt. Lakes and rivers
will be generated through some dungeon levels.

Monsters can now cast spells out of line of sight of the player,
including summon spells. You will be warned in some circumstances
when this is happening. Confused monsters will attack and breath
against other monsters.

Combat has been modified slightly so that melee attacks against
monsters are reduced by the monster AC, much in the same way as
melee attacks against the player are reduced. To compensate,
monster hit points are scaled down by the same factor (Internally),
depending on their armour class. It has the added benefit of making
spell attacks against heavily armoured monsters more powerful.

Missile weapons now use the same algorithm as melee weapons. Note
that missile weapons do not have their damage reduced by AC,
so they should remain (approximately) as effective.

A more detailled list of changes is available in changes.txt. Rough
notes on the future direction of this version are available in
future.txt.

Heavy play testing and debugging is still required. See bugs.txt.