As part of his quest to recruit shareware talent to help Epic compete with Apogee and bigger commercial publishers, Tim Sweeney would periodically post talent call-outs on Usenet. Here are two of them.

Sometimes he'd get pushback from people dubious about the royalties or suspicious that it sounds too good to be true and Epic must be doing something bad in the fine print. But people who worked with him would usually refute the claims. Epic was the real deal, they'd say.

...Except this one time I found where a developer whose Epic-published game had sold poorly offered a counterpoint, proving as in all things that nothing is guaranteed; high royalties don't mean squat if your game is unpopular.

He's asking for a physical letter in the mail.

@DanNess 1991 for that one, actually. The other post was '94 and asks people to send an email. But yeah, different world. (And yet, remarkably, so much of the business of games is the same.)