When comparing Old School Reference and Indexing Compilation (OSRIC) vs Call of Cthulhu: Dark Corners of the Earth, the Slant community recommends Call of Cthulhu: Dark Corners of the Earth for most people. In the question“What are the best tabletop RPGs?” Call of Cthulhu: Dark Corners of the Earth is ranked 1st while Old School Reference and Indexing Compilation (OSRIC) is ranked 32nd. The most important reason people chose Call of Cthulhu: Dark Corners of the Earth is:
Some of the most terrifying parts of this game is when you have to run away and make quick decisions about where to go or how to slow down those in pursuit.
Specs
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Pros
Pro AD&D 1E aligned to d20 SRD
OSRIC is based on the well-known 1st edition of Advanced Dungeons & Dragons, arguably the most popular RPG of all time. It doesn't stick to is slavishly, though, but instead brings in a few innovations from the later "d20 SRD" to regularize the system a bit and fill in some of the gaps. It is, however, still very much a 1980s system.
Pro Time sensitive chase sequences
Some of the most terrifying parts of this game is when you have to run away and make quick decisions about where to go or how to slow down those in pursuit.
Pro Crazy story-line
Slowly uncover the mind bending story, which is a reimagining of Lovecraft's 1936 novella, The Shadow over Innsmouth.
Pro Great stealth
Sneaking around is a necessity in this game, and is done well for it's time.
Pro Faithful to the mythos
Very faithful to the mythos overall. The narrative does an excellent job weaving the best of Lovecraft work together in a coherent story that is an absolute delight to play through.
Cons
Con Complex and inconsistent rules
There is no "general system" for doing things in the game - everything is a special case. This can result in a lot of page-flipping to find the particular rules for something, and in problems for new GMs who don't yet know the system well, or who aren't comfortable with improvising.