TY  - BOOK
AU  - Koster,Raph
TI  - A theory of fun for game design
SN  - 9781449363215
AV  - QA76.76.C672 K677T 2014
PY  - 2014///
CY  - Sebastopol, Calif.
PB  - O'Reilly Media
KW  - Computer games
KW  - Design
KW  - Social aspects
ER  -