This is a playthrough of the Half-Life mod Back-Life. This mod allows you to play through the Half-Life levels starting with Lambda Core, all the way back to the beginning of the game. Because of this, several portions of the game are unnecessary to enter, and the game is considerably shorter. Very little was changed by the creator, often only including one or two different elements to allow the Player to progress backwards. Interestingly enough, because of the reverse order, the game is much harder at the beginning, and gets easier the further you play. The hardest obstacle was how late in the game you get a crowbar. I did get mischievous on the final tram ride.