Grargar: I think it's the first time that Indie Royale has brought a mystery bundle; usually, they only have one mystery game out of a whole bundle. Now, the mystery game isn't revealed at a specific time. Sometimes, I have seen it revealed after only two days and sometimes just two days before the expiration of the bundle. Aside the Mystery Bundle, Indie Royale also has the War Bundle currently running ever since the previous week (with 7 more days remaining) and its mystery game has yet to be unlocked.
Thanks. I do recall there being mystery games back when the site had the old look, but never one as mystery-heavy as this. Will be exciting to see them revealed, however they go about it.
expopower: Not sure if this is based on an official source, but according to
this Reddit thread, a new game will be unlocked every day, accompanied by an increase in price.
That would be pretty cool, actually. Ratcheting up the cost in a race against the clock, making people decide before even more and better games are (hopefully) revealed, and kicking themselves for not getting in on it sooner and cheaper. Cruel but fun. :)