Alpha 5 - The end is nigh

This may be the last alpha release of the game, since there's just one big lump of a feature I want to implement - a simple metagame/campaign - before the game's in a state I can call more or less "finished"!

In the meantime, new changes as of this alpha:

Dungeon escalation!

A new encounter generation algorithm has been implemented, such that dungeons get increasingly dangerous the further along the hero ventures.  From the familiar rock piles and feeble goblins at the start, ramping up to a new final boss!

Orcs!

Filling out the mid and late game are now two kinds of Orc, one armoured one not.

Loot boxes!

Just added a little variety in the passive encounters, allowing you to collect some useful loot without the murder.