No, not a Flash game, but it involves winning MONEY, so I’m linking it. Quoted from the site:

http://www.sfu.ca/cstudies/arts/philosopherscafe/crostic.htm

“The numbers below are a code. If you crack it before anyone else you will win the amount of money shown at the minute your correct entry is opened. The current prize amount is shown above and goes down by 8 cents every hour ($2 a day, $14 a week). The prize money started at $600 at 12:00 am, January 1, 2007 and will be reduced until 11:59 pm on August 31, 2007. After August 31, the code will be changed and the prize will go back up to a high value.

The solution is a single sentence, read from left to right. It’s a funny quote from an American humourist, followed by his/her name. No punctuation is included. NO HINTS WILL BE GIVEN, no correspondence will be entered into. If you are close to solving the previous code, don’t give up because the decoding procedure is exactly the same.

The correct answer is in a sealed envelope held by Simon Fraser University. No one but the code’s deviser and one SFU representative knows the decoding procedure.

To win you must write out the quote and the speaker’s name in full AND explain in detail how you arrived at the answer. Please send your answer and explanation to the attention of Julie Rubin, Continuing Studies, 515 West Hastings St, Vancouver, BC, V6B 5K3 or email to interdisciplinary-cs@sfu.ca.”

23 38 92 52 67 39 15 15 53 77 35 51 28 45 84 67 11 52 19 58 28 76 77 67 14 15 71 66 51 93 76 76 34 55 37 78 55 19 29 67 78 77 54 77 93 91 28 15 51 74 28 35 94 78 57 19 73 93 28 79 53 72 35 94 57 94 25 43 71 33 26 51 17 35 76 79 17 35 58 31 18 15

No idea how legit this is, so play at your own risk and drop me some beer money if you win.

[ Crack The Code ]