It's also a crucial part of the skill leveling system. The Protagonist can level up his skills when using it by converting hallucinogens to essence. The amount of extracted essence is directly influenced by the oven efficiency: an oven efficiency of 4 means that the player will extract four times more essence from hallucinogens.
The oven in Dry Meadow Hideout is already lit from the start, but ovens in later hideouts must be lit manually. Ovens require no items to light and consume no fuel to operate. Only one oven can be active at a time; the Protagonist will need to relight the oven when revisiting a previous Hideout, should the oven at another Hideout have been lit.
Using the oven will save the player's game.
In addition to the game's four Hideouts, a fifth lightable oven can be found in the Road to Home, if reached through the Radio Tower Bunker. Broken or otherwise nonfunctional ovens can be found in the Road to Home (only if reached through the Radio Tower Bunker) and the Hideout Remains.
|Dry Meadow Hideout||1|
|Silent Forest Hideout||4|
|Old Woods Hideout||16|