Portal: Prelude 1.1.5
This new version is shipped with more than 115 bug fixes, improvements and additions (since 1.0.0). We know everything's still not perfect (voices, grammar, difficulty), but we believe we put enough work in this mod and thus, this version should be considered final (except if something really bad happens). Warning! Savegames are NOT compatible. Your progress with chapters unlocking is saved, but not savegames. This mod by the Portal: Prelude Team is the prequel to the Portal game. Features include more gameplay hours than the original game, 8 chapters, 48 challenges, 6 advanced maps, a brand new storyline and more than 400 lines of speech.