Under the direction of Marcus Stern (Donnie Darko), Endgame began performances Feb. 14 and was scheduled to run through March 15 at the Loeb Drama Center. Endgame will now play three additional performances on March 20 at 8 PM and March 21 at 2 PM and 8 PM.

The cast comprises Remo Airaldi (Nagg), Thomas Derrah (Clov), Will LeBow (Hamm) and Karen MacDonald (Nell).

Endgame, according to A.R.T., "charts a day in the life of a family fallen on mysteriously hard times — blind and chair-bound Hamm, his beleaguered servant Clov, his parents Nagg and Nell, who live in two ashbins and long for sugar-plums, and a black toy dog with a missing leg."

Designing the work are Andromache Chalfand (set design), Clint Ramos (costume design), Scott Zielinski (lighting design) and David Remedios (sound design).

Tickets, priced $25-$79, are available by visiting www.amrep.org or by calling (617) 547-8300. A.R.T. is located at 64 Brattle Street in Cambridge, MA.