Here is the full list of all 12 Indoor Sports World trophies - there are 7 bronze, 4 silver and 1 gold.
Win five pool games
Win five air hockey games
Earn you first customization unlock
Win first match in Arcade mode
Win five darts games
Win five snooker games
Play 150 games
Win first tournament in Season mode
Complete Arcade Mode
Complete Season mode
Score a 50 or more break in Snooker
Win 100 games