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