Achievements

Daily Tasks
Daily Tasks are small quests that get reset every day at 15:00 UTC (changed from 0:00 UTC on December 10th, 2019). On completion, they give you a small amount of rubies and if a Daily Event is running, the corresponding item as a reward. The quests come in multiple difficulties with whom requirement and reward vary. You unlock higher quests when you reach the corresponding Company level, meaning that it is possible to complete multiple quests in one single day at several occasions.

Daily
Daily Meta Progress - Complete 5 Daily Quests
 * The Tapper - Tap a private show 1000 times
 * Fap Investor - Sell Company once
 * Booster Gold - Use a Booster
 * Treasure Hunter - Open 10 Chests
 * Level-up Master - Upgrade Employees 500 times

Weekly
Weekly Meta Progress - Complete 5 Weekly Quests
 * Stock Master - Play Stock Market 3 times
 * Las Vegas - Spin the Wheel 3 times
 * Treasure Hunter - Open 50 Chests
 * Race Ready - Enter Weekly Tournament
 * Around the Clock - Time Skip 24h

Milestones
All achievements when completed reward you with an amount of rubies equal to the level of achievement you have: Level 1 = 1 ruby; Level 2 = 2 rubies; Level 3 = 3 rubies, and so on. Note: -Ascension, Daily, and Weekly Meta Quests- Achievements gives ten times the normal amount.