Below is a list of nicknames and email addresses of people who may have been active when Nomic Mud became inactive. Numerous addresses are surely out of date (I'll check them sometime), I thought I'd provide them in case you want to find a Nomic player. The nicknames that are capitalised are people I remember as active participants (allowing for my defective memory :)
geoff@goanna.cs.rmit.edu.au
akiva - "akiua@tartarus.uwa.edu.au"
alan - "alant@uctvax.uct.ac.za"
arbus - "arbus@yoyo.cc.monash.edu.au"
archer - "twhalen@casbah.acns.nwu.edu"
art - "busch@stein.u.washington.edu"
atlan - "gr92w6@efes.physik.uni-kl.de"
balor - "ridire@netaxs.com"
bear - "fkschmid@cip.informatik.uni-erlangen.de"
bedrosian - "melchiade@saporog'zie.bedrosian.baol"
bendegfran - "troutt@a.cs.okstate.edu"
biscuit - "ho03.eng.ua.edu"
Blob - "s2119737@cs.unsw.edu.au"
boormir - "jwooten@williams"
breogan - "mcarro@fi.upm.es"
bunski - "cw@saturn.cs.swin.edu.au"
carey - "chammer@landau.ucdavis.edu"
Chatham - "rchatham@math.utk.edu"
Chuck - "cec35848@uxa.cso.uiuc.edu"
chuckle - "chuckle@cats.ucsc.edu"
cogen - "cogen@ll.mit.edu"
curtis - "ab1015@uokmvs"
daedalus - "kwhyte@math.uchicago.edu"
dagger - "mlvogel@unix.ncsu.edu"
Dave - "dnicol@cstp.umkc.edu"
david - "dmw@yoyo.cc.monash.edu.au"
Davidb - "david.bowen@cray.com"
dem - "caplan@cs.uiuc.edu"
deth - "ae185@cwu.eis.edu"
dno - "grimaldi@astrna.astro.it"
doug - "dsh@eceyv.ncsu.edu"
earthman - "edsp40@athena.mit.edu"
echx - "ac999156@umbc2.umbc.edu"
eldridge - "eldridge@wam.umd.edu"
emma - "rfs1@ukc.ac.uk"
eric - "ericb@lsid.hp.com"
ericj - "ad43@vm1.mcgill.ca"
ernie - "ewmc@mobius.maths.monash.edu.au"
eva - "carlstro@ac.grin.edu"
Evantine - "ghogenso@u.washington.edu"
falko - "fsp@thp.uni-koeln.de"
fred - "jcc@casbah.acns.nwu.edu"
gabrielec - "guainazzi@ipamat.cres.it"
ganelon - "jfry@eagle.wesleyan.edu"
Garf - "s2103420@cs.unsw.edu.au"
Gautama - "jarst18+@pitt.edu"
gentle - "hall@rhea.cs.bonn.edu"
Geoff - "geoff@molly.cs.monash.edu.au"
giles - "gt@rundart.demon.co.uk"
gilmore - "un031277@wvnvms.wvnet.edu"
Goethe - "kaydin@jarthur.claremont.edu"
gues - "lbg0456@uk.ac.qub-.v2"
Hansb - "hansb@cs.ruu.nl"
hedbangyr - "sfarrug@caticsuf.csufresno.edu"
helen - "hcrain@convex.csd.uwm.eu"
herman - "ausher%orion.physics@ox.ac.uk"
hisst - "hisst@yoyo.cc.monash.edu.au"
hspray - "pkorkia@jyu.fi"
icecube - "@uiuc.edu"
Ilt - "ilt@bog.lrdc.pitt.edu"
jahana - "dilickjm@ctrvax.vanderbilt.edu"
james - "ab1015@uokmvsa"
jasmine - "easu264@orion.oac.uci.edu"
jens - "phstud12@nyx.uni-konstanz.de"
joao - "jota@iguana.inesc.pt"
joe - "lindsay@cs.wisc.edu"
Joev - "dubach1@husc.harvard.edu"
joshua - "houk@athena.cs.uga.edu"
karma - "esrec@uk.ac.warwick.csv"
kasparil - "kerim@sif.claremont.edu"
kevin - "skoglun1@husc10.harvard.edu"
kilroy - "kilroy@was.here.mil"
kyrie - "cxm202@psuvm.psu.edu"
lessa - "hicks@idui1"
Lindrum - "jdc9@cunixa.cc.columbia.edu"
linus - "pjohnsto@vtssi.vt.dedu"
luke - "hankins@cs.swarthmore.edu"
luster - "deanl@mis.sequoia.com"
madman - "madman@acs.bu.edu"
marduk - "macphesa@sumax.seattleu.edu"
markham - "johnh@acpub.duke.edu"
marnix - "klooster@dutiws.twi.tudelft.nl"
matthew - "dpmt@uqadm.cc.uq.edu.au"
matthewt - "dpmt@uqadm.cc.uq.edu.au"
Matthey - "matthey1@husc.harvard.edu"
mike - "mmcg@bruce.cs.monash.edu.au"
milo - "berger@math.rice.edu"
monk - "libwca@emuvm1.bitnet"
monte - "box@scf.usc.edu"
moses - "wojasinki@ruth.butler.edu"
mothra - "robshill@cs.rice.edu"
munch - "munch@sage.cc.purdue.edu"
mutation - "the_mutation_committee"
nat - "nlwst4@pitt.edu"
neill - "admnei01@uctvax.uct.ac.za"
niaux - "mw1841r@acad.drake.edu"
noam - "mohr-noam@yale.edu"
nok - "ngaravit@cayley.uwaterloo.ca"
nomad - "iberkele@vm.ucs.ualberta.ca"
nyd - "ngaravit@descartes.uwaterloo.ca"
Oerjan - "oerjan@nvg.unit.no"
ola - "ola@vipunen.hut.fi"
orbus - "j-germuska@nwu.edu"
patrick - "tusk@daimi.aau.dk"
paul - "hannahp@topaz.ucq.edu.au"
pete - "ecucz@lily.warwick.ac.uk"
polarbear - "brown@cs.utk.edu"
qwyrx - "ahahn@sdcc13.ucsd.edu"
randy - "ishyus@1996c@vmi"
reger - "reger@u.washington.edu"
rerdum - "backyard@the.neighborhood"
revenant - "sousa_dab@ctstateu.ccsu.edu"
robert - "link@lcopt.physics.fsu.edu"
rory - "rbm@cs.anu.edu.au"
rosario - "rube@na.infn.it"
saarik - "big@yoyo.cc.monash.edu.au"
samsara - "dpacheco@math.macals.tredu"
schwartz - "ksdavis@silver.ucs.indiana.edu"
sep - "mkwhelan@acacia.ccsd.uts.edu.au"
shadowlord - "kfredric@nic.gac.edu"
shawn - "strexler@loligo.cc.fsu.edu"
silencer - "ghengis@rac1.wam.umd.edu"
silverblade - "gt6564c@hydra.gatech.edu"
sirmike - "weid@esu.edu"
skot - "stoness@cmc.ca"
solon - "carterd@cs.qub.ac.uk"
splange - "u9117695@uk.ac.uea.sys"
starman - "ahankin1@cc.swarthmore.edu"
Stefano - "cirolini@itnsg4.cineca.it"
Steve - "gardner@aurora.cc.monash.edu.au"
stinglai - "blojo@xcf.berkeley.edu"
Storm - "mkkuhner@genetics.washington.edu"
swenty - "ocrow@cs.berkeley.edu"
talisman - "csrfn@blaze.trentu.ca"
tirisias - "zmason@jarthur.claremont.edu"
tolmon - "hasert@stolaf.edu"
twanda - "mmc005@acad.drake.edu"
vlad - "slagblah@acs.bu.edu"
wayne - "gt7804b@prism.gatech.edu"
xiombarg - "dankmyer@ac.grin.edu"
zik - "zik@aurora.cc.monash.edu.au"
zorro - "lvaldez@quenta.cc.hsqa.edu.me"