Here is the full list of all 50 World Series of Poker 2008 achievements worth 1,000 gamerscore.
Won the Texas Hold'em Limit World Championship
Played a cash game at Caesars
Won a cash game at Caesars
Completed "Phil's Poker School"
Took down at least 25 players in Xbox LIVE matches
Played 25 Xbox LIVE matches
Took down at least 10 players in Xbox LIVE matches
Earned the Recreational Rank (or higher) by playing Xbox LIVE Matches
Hosted 5 Xbox LIVE games
Won Player of the Year at level semipro
Earned the Novice Rank (or higher) by playing Xbox LIVE Matches
Took down at least 2 players in Xbox LIVE matches
Won the Texas Hold'em Pot Limit World Championship
Won the Omaha Hi-Low 8 or better World Championship
Placed in the money at the Omaha Hi-Low 8 or better World Championship
Broke $2,000 in the Same Hand Jam
Won one Quickplay game
Won the Main Event
Collected four complete sets of Collector Chips
Placed in the money at the Main Event
Won the Texas Hold'em Mixed Limit World Championship
Placed in the money at the Texas Hold'em Mixed Limit World Championship
Collected three complete sets of Collector Chips
Won Player of the Year at level pro
Won the HORSE World Championship
Placed in the money at the HORSE World Championship
Won the Seven Card Stud Hi-Low World Championship
Placed in the money at the Seven Card Stud Hi-Low World Championship
Collected two complete sets of Collector Chips
Placed in the money at the Texas Hold'em Pot Limit World Championship
Won the Omaha Pot Limit World Championship
Placed in the money at the Omaha Pot Limit World Championship
Placed in the money at the Texas Hold'em Limit World Championship
Completed the Heads-Up: "Beat The Brat" gamplay mode
Won a cash game at Paris
Played a cash game at Paris
Won a cash game at Bally's
Won a cash game at Flamingo
Won a cash game at Harrah's
Played a cash game at Bally's
Played a cash game at Flamingo
Won the Seven Card Stud World Championship
Knocked out 25 pros at least once
Placed in the money at the Seven Card Stud World Championship
Played a cash game at Harrah's
Collected one complete set of Collector Chips
Knocked out 10 pros at least once
Win Player of the Year at level amateur
Earn the Professional Rank (or higher) by playing Xbox LIVE Matches
Earn the Expert Rank by playing Xbox LIVE Matches