US-residing PlayStation Plus subscribers are in for a treat this week - Payday: The Heist is being added to the 'Instant Game Collection' library. The fun four-player co-op shooter will be downloadable for free as of tomorrow's US PS Store update, and is well worth a look.Other PS Plus perks this week include early access to the brilliant Unfinished Swan, out tomorrow for subs ahead of its wider release on October 23. We gave it a deserved 9/10 score in our review, so check that out. Subs will also get access to the PlayStation All Stars Battle Royale beta, as reported earlier. More details through that link.