Cool friend websites

andrew4043: https://andrew4043.neocities.org/
- cool person from tetris oyes airiGasp
azura: https://www.azurahori.zone/
- cool person from tetris azuWow azuCozy
peal: https://appealingnamegoeshere.neocities.org/
- cool person from nichijou who likes death note and sonic
mimic: https://mimicteruyo.neocities.org/
- cool person from touhou very cool writer
zudo: https://isabelle.gg/
- cool person from tetris and fellow wikipedia nerd

Other cool websites

qntm: https://qntm.org/
- cool sci-fi fiction, nerdy topics
xkcd: http://xkcd.com/
- nerdy webcomic
liquipedia tetris: http://liquipedia.net/tetris
- esports documentation
sekai.best: https://sekai.best/eventtracker
- project sekai event tracker
kristen sheley: https://www.kristensheley.com/
- cool back to the future fanfiction
mary jean holmes: https://web.archive.org/web/20060209070816/http://www.mj-holmes.com
- also cool back to the future fanfiction but unfortunately the website is no longer up so you must use web archive :c
mahjong soul: https://mahjongsoul.game.yo-star.com/
- tsumo nya
king of stackers: https://kingofstackers.com/
- turn-based correspondence tetris!
jstris: https://jstris.jezevec10.com/
- lightweight simplistic tetris
tetr.io https://tetr.io/
- modern yet familiar stacker but you may need a bit more beefy of a pc
tetra legends: https://tetralegends.app/
- cool vibes single player tetris: includes modern, classic, and night-of-nights challenge, and more
anime music quiz: https://animemusicquiz.com/
- no skipping anime openings/endings c:

ztrix: https://ztrix-game.web.app/
- lab out tetris move sequences, includes zone functionality
- practice kirbtrises: https://ztrix-game.web.app/random/1
puyo chain simulator: https://www.puyop.com/s/
- lab out puyo move sequences
mahjong efficiency trainer: https://euophrys.itch.io/mahjong-efficiency-trainer
- tile efficiency maxxing
YouTube region block checker: https://polsy.org.uk/stuff/ytrestrict.cgi
- things are inaccessible in specific counries sometimes
Unicode character decoder/encoder: https://r12a.github.io/app-conversion/
- check the codepoints of invisible or similar looking characters
regex101: https://regex101.com/
- try out regexes