Puzzle Retreat is a real challenge in the later stages. If you've managed to conquer it for the time being, you might like some of these other games:

GTA 5 Help
GTA 5 Help
Lazors Answers
Lazors Answers
What's The Band Help
What's The Band Help
Flow Free Answers
Flow Free Answers
This + That Answers
This + That Answers
TwoDots tips
TwoDots tips
Icon Pop Help
Icon Pop Help
Hello Stars answers
Hello Stars answers
Monument Valley Videos
Monument Valley Videos
4 Pics 1 Song Help
4 Pics 1 Song Help
4 Pics 1 Word Help
4 Pics 1 Word Help
Timewaster
Timewaster
Pic Combo Help
Pic Combo Help
Icomania Help
Icomania Help
WordBrain answers
WordBrain answers
Pictoword answers
Pictoword answers
Guess The 00s Answers
Guess The 00s Answers