From 1995 to 1997, he was half of a partnership known as Malicious Press (with screenwriter Terry Rossio), which published Deathrealm magazine, edited by Stephen Mark Rainey and he was the managing editor of the webzine Helix SF for its entire run of ten quarterly issues.
In April 2005, Watt-Evans announced that the first draft of his latest Ethshar novel, The Spriggan Mirror, would be made available online as a serial, using a modified version of the Street Performer Protocol.
He since completed several online serials, all using that same method: The Vondish Ambassador in 2007, Realms of Light started November 2008 (his only non-Ethshar serial, a sequel to Nightside City), The Final Calling started in June 2010 (later published as The Unwelcome Warlock).
In June 2013 Watt-Evans began a crowd-funding campaign for his unpublished science fiction novel Vika's Avenger, a story unrelated to his previous works, and in July he started a sixth Ethshar serial, Ishta's Companion.
In 2014 he announced that, as the response to the campaign for Ishta's Companion had been disappointing, he would stop writing online serials.