These are all GRFs, where could included independed from server:

[newgrf-static]
data/ottdc_grfpack/cs/rail-cs/rail-cs-ottd.grf
data/ottdc_grfpack/def/newwater/newwaterw_412.grf
data/ottdc_grfpack/def/ngrails/ngrailsw.grf
data/ottdc_grfpack/def/stolentrees/stolentreesw_162_108.grf
data/ottdc_grfpack/jp/jpset_lnd/jpset_lndw.GRF
data/ottdc_grfpack/jp/jpset_tre/jpset_trew.GRF
data/ottdc_grfpack/nl/dutchcat/dutchcatw.grf

.