THE SO FAR Theater Company inaugurates its new home with "Game Time," an uninventive but innocuously amusing romantic comedy by Washington playwright Rick Foucheux.

Abigail, a single freelance writer, and her married friend Veronica, an attorney, inhabit adjoining offices, a situation that leads more to gossip and aerobicizing than to work. Abby's devoted beau Alan is a Washington Redskin and a sex symbol, but Abigail has been burned before and won't agree to marry her pleading hunk till she's made sure he'll be true. To this end, she coaxes Veronica into propositioning Alan over lunch; meanwhile, Abigail lunches with Veronica's husband Elliot, who makes a pass at her, etc.

Though "Game Time" is up to date in its acquisitive, Yuppie mindset and ostentatious dropping of Washington names and places, it is hard to swallow, in 1986, its unpleasant premise that "mutual distaste between the sexes is the only thing that keeps the human race going," and the anachron istic, destructive obsession with fidelity that motivates its characters.

"Game Time" gets off to a sluggish start but builds to some lightweight, if conventional, comic payoffs, notably in the second act's double lunch scene. Foucheux scores points with some contemporary funny business with telephone etiquette and aerobics routines, most of it nimbly handled by director Nancy Donoval.

All four actors are confident and believable in their roles, particularly Victoria Geis, elegantly edgy as Veronica, and David MacDonald, who underplays handsomely as Alan the placekicker. The So Far troupe, which specializes in comic plays, has made a new home at Dumbarton Methodist Church, and the space remains more church than theater, suffering somewhat from uncomfortable seating, murky sound and Flight Path Syndrome.

GAME TIME -- So Far Theater Company (at Dumbarton Methodist Church, 31st and Dumbarton NW) through May 24.