This is the core rulebook for the RPG Within
Within is an horror RPG to recreate the ambiance of horror movies and series in the 20th century and onward up to a near future.
This universe is not meant to be realistic but rather an alternative world close to ours, with all the tropes that TV and movies reuse. The GM will be deciding what's happening and what's not.
A review of Within core rulebook, a French horror RPG.
A scenarion for Within