atomix.scores is the scores file used by the game Atomix.
The format is based on plain text, it contains three columns separated by a single space. The first column is the score recorded as a floating point decimal number. The second column is the date recorded as the timestamp decimal integer. The last column is the username of the player recorded as a string.
The file usually resides in /var/games/
254.000000 1429687431 volodya 247.000000 1429084276 volodya