Angband is a free, roguelike dungeon exploration game you can download from https://rephial.org, or play right through your web browser at https://angband.live .
And it's open source, so you can even download the source code and compile it yourself. My step-by-step guide to compiling the ASCII version of the game in Windows is on the Angband forum: http://angband.oook.cz/forum/showthread.php?t=11013
The Windows ASCII version I'm running in this video is one I compiled for myself from the latest, version 4.2.4 source code (plus my customized title screen):
0:00 - start
1:20 - depth 18
5:10 - good Leather Shield of Resistance
24:30 - depth 19
28:40 - Shagrat, the Orc Captain
45:26 - hydras
1:03:13 - an Umber hulk tunnels!
1:04:50 - ill-advised potion chugging 'O'
Mmmmaybe I shouldn't have set off the rune of summoning; probably should'a tried the uh wand of slowness or whatever on the 4-headed hydra it summoned, at least! Probably shouldn't have chugged those three unidentified potions, either. Oh my stats! = oo
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