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
4 Pics 1 Word Help
4 Pics 1 Word Help
Icomania Help
Icomania Help
Icon Pop Help
Icon Pop Help
TwoDots tips
TwoDots tips
This + That Answers
This + That Answers
Pic Combo Help
Pic Combo Help
Monument Valley Videos
Monument Valley Videos
Lazors Answers
Lazors Answers
Guess The 00s Answers
Guess The 00s Answers
4 Pics 1 Song Help
4 Pics 1 Song Help
Flow Free Answers
Flow Free Answers
What's The Band Help
What's The Band Help