Here is the full list of all 42 Holyday City: Reloaded achievements. It takes around 200 hours to unlock all of the achievements on Windows.
City Facilities 1200 total
Reach 580 Trophies
Hire the Manager "Audrey, The Mystic"
Increase your Profit Paradox to Lvl 50
Buy 60 Aquarium items
Obtain All the Marina Items
Obtain the Scuba Gear from the Marina
Play 999 hours.
Play 148 hours.
Reach Town Lvl 26 (Holyday City)
Buy the 96th Upgrade
Unlock the Airport (Reach town lvl 22)
Reach 365 Trophies
Buy the 36th Upgrade
City Facilities 555 total
Reach Town Lvl 31 (Skyline City)
Hire the Manager "Diego, the Young"
Unlock the City Aquarium
Unlock the Marina (Reach Town lvl 14)
Upgrade your Port to Lvl 20
Sign a Contract with all Agents
Do the Investment "Cooling System"
Get your 1st Lab Profit Paradox
Go max level in all Time Paradoxes in the Atomic Lab
Sign your 1st Contract
Buy at least 1111 of each Business
Obtain The Golden Watch Prestige Item
Reach 150 Trophies
Unlock the events (Reach Town lvl 5)
Upgrade your Port to Lvl 2
Get 1 of each time paradox in the Atomic Lab
Do the Investment "Scale Economy-o-meter"
Play 24 hours.
Buy at least 333 of each business
Buy your 1st Upgrade
Reach Town lvl 2
Hire the Manager "Jimmy, The Advertiser"
Get 1 City Facility
Reach 50 Trophies
Play 2 hours
Buy 1 of each Business
Reach 10 Trophies