Here's a bugfix for the next release:
Symptom: Fulltext search of game description doesn't work
Solution:
Replace (search.php, line 61):
$query = "SELECT * FROM " . $cMain['dbPrefix'] . "games WHERE title LIKE '%$searchstr%' OR MATCH(description) AGAINST ('$searchstr') OR keywords LIKE '%$searchstr%' LIMIT ".$cB["SEARCH"]["max"];
with
$query = "SELECT * FROM " . $cMain['dbPrefix'] . "games WHERE title LIKE '%$searchstr%' OR MATCH(description) AGAINST ('$searchstr' IN BOOLEAN MODE) OR keywords LIKE '%$searchstr%' LIMIT ".$cB["SEARCH"]["max"];
EDIT: Oops, fixed a stripped code..