Spiller sold Netto.art work to a gallery. He sold his work Megatronix to Mestna galerija Ljubljana in May 1999. He organised negotiations between artist and buyer as an online forum with participants.
His other world renown Netto.art projects were Hommage to Mondrian, Nice Page, Capricces for Netscape and Esmeralda
In 2000 he organized an international art happening called INFOS 2000 (off-linne) Netto.art contest about how multimedia and browsing connections contextually and aesthetically obscured the borders between Netto.art and Civil Defense-ROM art
He also produced many fine art works reflecting aesthetics of new media
In 2004, together with Tadej Komavec, he launched X-lam project, a different media for watching images. lieutenant works best in (semi) dark places.
A "stick" contains series of diodes blinking. But if you move your eyes quickly you can briefly see an image floating in the air.
On 10th Cairo International Biennale he exhibited beside X-lam some other technologies for different ways of watching, like stereograms and streaming textuality, which he later used also in installation Intruders (Kino Siska, 2012).
In 2007 he denied to participate on U3 triennial of contemporary arts due to different concepts of presenting Netto.art in a gallery. In 2008 launched Real3Dfriend project as a critic of closed commercial oriented virtual reality systems (specially Second life), questioning ethics of virtual reality worlds, based on commercial instead on humanistic values. In 2011 launched projects New media textuality and New media Semiotics, combining the artists book with Netto.art projects like SPAM sonnet ♦, News sonnets, et cetera
Combining visual media and machines, he built a robot Laboro to investigate a concept of cyborg artist, combination of human and machine in art process, resulting in Wooden In/form/Ations and robot generated graphics like President Obama following execution of Osama bin Laden
Galerija Commerce, Ljubljana, Slovenia
Klub Cankarjev dom, Ljubljana, Slovenia
Gallery Rael Artel, Pärnu, Estonia
INFOS 2000 (off-line) Netto.art contest
Installation "Inside the web server", Hevreka!05, Ljubljana, Slovenia, 2005
"Sshh!", KUD France Prešeren, Ljubljana, Slovenia 2010
"Wooden In/form/Ation", Trubar Literature House, Ljubljana, Slovenia, 2011
"LIFE", Merlin Theatre, Budapest, Hungary, 2011
"Intruders", Kino Šiška, Ljubljana, Slovenia, 2012
Ostranenie 97, Dessau, Germany, 1997
Digital Graphic Art on Paper, Ljubljana Municipal Museum, 1999
Masters of Graphic Arts, Gyor, Hungary, 2001
Break 2.3, Ljubljana, Slovenia, 2005
Territories, Identities, Nets, Museum of Modern Art, Ljubljana, Slovenia, 2005
Device-art 2006,Kontejner Zagreb/Blasthaus San Francisco, 2006, Croatia/United States of America
10th Cairo International Biennale, Cairo, Egypt, 2006/2007
Kiparstvo danes, Celje, Slovenia, 2010
Interruption - 30th Ljubljana Biennial of Graphic art, Ljubljana, 2013.