While Jonathan Blow can't give exact figures, his latest puzzler, The Witness, is on course to surpass Braid's year one sales in its first week of release.
He took to Twitter to share the news with followers. "It's hard to talk about numbers without breaking NDAs, but The Witness is on track to sell more in a week than Braid sold in its first year," he wrote.
He clarified that he meant more in terms of revenue, and added that the number of copies sold will outstrip Braid's first week, but possibly not its year one tally.
Steam Spy reports that The Witness has sold around 40,000 copies on PC, a number that Blow says is "kinda far off, on the low side." To give you a frame of reference, Braid was purchased by around 55,000 people on Xbox Live Arcade in its first week of release.
Not bad for an indie game that tasks you with solving puzzles using drawn lines...and doesn't feature guns!