Haha, glad to hear you guys like them.
I'm using
REAPER to put all the music together. It's a great program, and its interface is really nice (other than the occasional minor thing).
As for synths, there are a few different things I'm using.
Most of the instruments are
VOPM synths. It's a VST that emulates the YM2151 sound chip, which was used pretty heavily in 80s arcade games. Given the option, I probably would have gone for something emulating the YM2612 (the Mega Drive chip), but I think this one comes close enough. Anyway, I grabbed
this huge library of sound configurations from Mega Drive games for VOPM, and used them as reference to set up some basic bass and guitar synths. As you can see, there are a lot of settings:
So, I've just been playing around with my existing instruments and tweaking them until they sound nice. At this point, I've made 15 different bass variants and 11 different guitar variants, as well as a cheesy synth horn.
The other synth I use is the
Synth1 VST. Mostly, I use it for square waves, since VOPM can't really synthesize them. It also shows up in two other places, both of which you can hear in
Error Rave. One is the laser sound, which you can hear at
0:10 and the other is that robotic voice you can faintly hear at
0:56.
Lastly, there's the percussion, which took me until about a month ago to get right. I think Resolute is the only track I've uploaded that currently has them in a state I'm happy with. The rest have all had their drum tracks reworked, but I haven't uploaded them yet since it's a somewhat minor change. I made a post about that back
here. The samples themselves are largely from
DrumSamples.org, a few drum samples from the
PXTone Manual, and an orchestra hit from
beatproduction.net.
As for actually
composing the music... I have absolutely no idea. I don't have any formal training in music, nor can even play any instruments, so this soundtrack really is just the culmination of several years' worth of screwing around with a bunch of music software. So it's pretty cool that people like it, because going in, I had no idea if I was actually going to be able to pull off an entire soundtrack. I've been drawing a lot of inspiration from
FantomenK, Earthworm Jim, the Mega Drive Sonic games, and Danny Baranowsky, but that's pretty much the only part of the process I could actually clearly describe, aside from "put some notes on the screen, listen, and throw them out if they sound bad," haha.