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:

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