obSESSION's Appendices.

Core Appendices, Diet Appendices and Optional Appendices

obSESSION includes a number of variants and options that are not needed for basic play but can be used to enhance and adjust the game to suit your needs. These extra rules are grouped into Appendices, each of which can be further defined as follows...

Core Appendices are included in the Core Set (but not the Core Rules) and include a variety of optional enhancements which are 100% obSESSION Compatible rules. These rules may be used of a "pick and choose" basis without interfering with the way the game plays.

Diet Appendices contain the cut down essentials form the Core Appendices and are available free from this site. These are the rules that, while optional, are considered key portions of the game system and should be made available to all players at no extra cost.

Optional Appendices are just that: optional. These Appendices contain rules that are not a part of Core obSESSION and may or may not be 100% obSESSION Compatible. Optional Appendices may be produced by OCD or may be third party supplements.