 The "Portal" team worked with "Half-Life" series writer Marc Laidlaw on fitting the game into the series' plot.This was done, in part, due to the limited art capabilities of the small team; instead of creating new assets for "Portal", they decided to tie the game to an existing franchise—"Half-Life"—to allow them to reuse the "Half-Life 2" art assets.Wolpaw and Faliszek were put to work on the dialogue for "Portal".