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Portal: Combined Technologies, also referred to as simply "Combined Tech", is a puzzle, story, and combat driven Portal 1 mod (recently being converted from portal 2)that links the stories of Portal and Half-Life using the concept of the "multiverse device" introduced in the PTI update to Portal 2. This mod will include partial custom voice acting for a couple new characters, plus modified in-game character voices for Cave Johnson and GLaDOS; various new weapons, new enemies, a custom story playing off both Portal 2 and Half-Life 2, and many other things.
RIP bad mod. here's some footage.
why is it bad. also could you upload Portal Combined Technologies. or are you gonna work on it after valhalla