Can you point to a sound you like? Address? And then point to music you would like to convert. Any non-gamers are going to be lost by game and data buzz words.
Audacity has a thing called “Nyquist Prompt” in its Effects list. If you put “(quantize s 4)” into Nyquist Prompt, then apply Nyquist Prompt as if it was an effect, it will produce a bit-crush effect , ( the lower the number the lower the bit-depth )
You’ll probably want to apply equation after quantization to reduce the high-frequencies.
UPDATE : I just noticed there is a dedicated bitcrushing plugin in that free download from dblue called “dblue_crusher” : it’s easier to operate than the bit-crusher within the dblue Glitch plugin , again real-time adjustment is possible when used in Audacity 2.1.X …
The dblue_crusher plugin is easier to use than Glitch if you just want a bitcrush effect.
[ The dblue_crusher plugin is in the same zip-file from “illformed.org” where you got the Glitch plugin ].
I’d just apply bit-crush effect to the bassline for something that resembles 8-bit music …
Make a duplicate version of the music in Audacity , then remove everything above about 300Hz from the duplicate using Audacity’s equalizer, then apply dblue crusher effect to the duplicate with the settings shown above. The duplicate is now a bit-crushed bassline, mix that with the original music according to your own taste.