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