The centre aims to operate in line with the basic ideas of "performance first": minimalism, reduction, and the limiting of theatrical expression. Verbal and artistic languages are accorded equal status: every project deals with a literary model and a visual concept, which are created anew. The first performance was the eponymous Elizabeth Project [Elizabeth] (1997), and in 1998 the Centre produced its second show Ion, which won an award at the Week of Slovenian Drama in Kranj. Horvat's productions Instruction [Inštrukcija] (1995), Ion, Ionesco's Macbett [Makbet] (1999), and Sharpen Your Senses (2000) divided both critics as well as the Slovene public. EPI Centre's past productions include: School Notebook [Šolski zvezek] (2003), directed by Ivana Djilas, Still Life [Tihožitje] (2004), conceived by the stage director Jernej Lorenci, and Oidipus [Ojdip] by Jaka Ivanc. In co-production with Ljubljana Dance Theatre (PTL), EPI Centre has staged choreographies by Matjaž Farič, Snježana Premuš, Valentina Čabro, and Ariella Vidach. EPI Centre's performances are often co-produced by Ptuj City Theatre, Slovene National Theatre (SNG) Maribor, Slovene National Theatre (SNG) Ljubljana - Drama, Mladinsko Theatre, Glej Theatre and Ljubljana Dance Theatre (PTL).
EPI Centre productions have also appeared at several festivals, including the Mladi levi Festival and the Exodos International Festival of Contemporary Performing Arts in Ljubljana, Neighbouring Voices in Bulgaria, the New European Theatre Festival in Moscow, the Biennial Festival of Young Artists of Europe and the Mediterranean, the Four Days in Motion Festival in Prague and the Mittelfest in Cividale, Italy.