A while ago (the first stuff I posted to ModDB was in 2015, whoa) I was going to make a Portal mod... several projects have promised to re-tell Doug Ratman's story from his perspective and I wanted to be one of those. I'd never really taken a liking to Portal 2 and it being it's own game, engine, SKD, rather than sharing 90% of its code and assets with Half-Life², made it hard to mod, so I picked Portal to base my mod off.
I decided to pick up the story where Portal: Prelude left off, on the day of GLaDOS' activation, with a long intro going through the day, a few puzzles but mostly storytelling, quite similar to Half-Life's. Next up should be several years of Doug's enduring test chambers and slowly managing to somewhat escape GLaDOS' supervision and wander through Aperture, followed by his observing Chell's journey and ultimate self-sacrifice to save her.
Very little, actually... I made a big, fancy logo, hexed a hl2 citizen model to impersonate Cave Johnson, made a very basic 3D model that could have been done in-Hammer with brush entities, wrote up a basic plot and built a few proof-of-concept maps.
Equal parts hybris, life and technical difficulties... teenage-me vastly overestimated her abilities and underestimated the effort required to complete this. I knew very little people in the Source community and thus failed to recruit any co-conspirators on my quest to make the Next Big Thing and between everyday life and school, there wasn't really enough time nor motivation to properly get things done. On top of that, I still have to figure out how to tame Portal's Hammer... I never learned what config I messed up when I set up the game configs, but usually, Hammer would either refuse to compile, citing a lack of rights to access things; would compile without any lighting, with models missing; would seemingly compile but the map would not update, or other stuff... I even mailed Nicolas from the Portal: Prelude team to ask about their Hammer configs (he was unable to help me) and eventually gave up and all but forgot about it... the mod is still on ModDB, with disappointed comments about the project once again bein MIA after my last "oh nevermind i'm not dead" post years back...
I hope at some point I can actually get back working on this... most of the Ratman mods I've seen in the meantime are Portal 2-based (and, as Source modding dies out, are dead themselves)... not in the foreseeable future though.