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