Say I spent 20 k hours on my game, and everything below took 2000 k hours to build. My own efforts only contributed to 1% of my game.

Art

GIMP = main drawing app

Blender = sculpting heads for character portraits

Google, Duckduckgo = image references


Music

LMMS = DAW, making music

audacity = edit and export

freesound.org = sound effects

soundcloud = music references


Tech

Vim = text editor

JavaScript, TypeScript, Python = code

Make = build automation

Git, GitLab = version control

AWS for a long time, then switched to Cloudflare, Nginx = web server

PostgreSQL for awhile, but removed = database

Firefox = web browser, debuger, profiler

developer.mozilla.org/en-US/ = web API references

w3schools.com = HTML and CSS references

Godaddy to Namecheap = domain name

Linux = operating system


Writing

LibreOffice Writer = outline, notes

thesaurus.com

merriam-webster.com = dictionary

imdb.com = market research

scriptslug.com = screenplay references

tvwriting = screenplay references

scripts.tv-calling.com/archives = screenplay references

comedy central (YouTube) = comedy references

laugh factory (YouTube) = comedy references

dry bar comedy (YouTube) = comedy references


Education

YouTube

Wikipedia

Quora

StackOverflow

Gamasutra

Steam = market research

Reddit = memes, news