By completing Clash of Clans Achievements, you can earn a lot of Gems and Experience as the rewards. If you complete an Achievement in game, it will be added into your Game Center profile (iOS) or Google profile (Android).
If you can finish all these achievements, you can earn totally 8,687 Gems and 35,320 Experience. With this number of Gems, you can do a lot of things!
Till now, there are total 66 Achievements in Clash of Clans:
| Clash of Clans Achievements | 1 Star | 2 Stars | 3 Stars |
|---|---|---|---|
| Bigger Coffers Upgrade your Gold Storages | 10 XP + 2 Gems | 100 XP + 5 Gems | 1,000 XP + 10 Gems |
| Get those Goblins! Win stars in Single Player Campaigns | 10 XP + 5 Gems | 100 XP + 10 Gems | 1,000 XP + 20 Gems |
| Bigger & Better Upgrade your Town Hall | 10 XP + 5 Gems | 100 XP + 10 Gems | 1,000 XP + 20 Gems |
| Nice and Tidy Remove obstacles | 10 XP + 5 Gems | 100 XP + 10 Gems | 1,000 XP + 20 Gems |
| Release the Beasts Unlock new troops | 10 XP + 5 Gems | 100 XP + 10 Gems | 1,000 XP + 20 Gems |
| Gold Grab Steal an amount of Gold | 10 XP + 5 Gems | 100 XP + 10 Gems | 1,000 XP + 20 Gems |
| Elixir Escapade Steal an amount of Elixir | 10 XP + 5 Gems | 100 XP + 10 Gems | 1,000 XP + 20 Gems |
| Sweet Victory! Achieve a certain number of trophies | 10 XP + 5 Gems | 100 XP + 10 Gems | 1,000 XP + 450 Gems |
| Empire Builder Upgrade Clan Castle | 10 XP + 5 Gems | 100 XP + 10 Gems | 1,000 XP + 20 Gems |
| Wall Buster Destroy a number of walls | 10 XP + 5 Gems | 100 XP + 10 Gems | 1,000 XP + 20 Gems |
| Humiliator Destroy a number of Town Hall | 10 XP + 5 Gems | 100 XP + 10 Gems | 1,000 XP + 50 Gems |
| Union Buster Destroy Builder’s Huts | 10 XP + 5 Gems | 100 XP + 10 Gems | 1,000 XP + 30 Gems |
| Conqueror Win a number of battles | 10 XP + 5 Gems | 100 XP + 10 Gems | 1,000 XP + 20 Gems |
| Unbreakable Successfully defend against attacks | 10 XP + 5 Gems | 100 XP + 50 Gems | 1,000 XP + 100 Gems |
| Friend in Need Donate a large number of troops | 10 XP + 5 Gems | 100 XP + 25 Gems | 1,000 XP + 250 Gems |
| Mortar Mauler Destroy a large number of Mortars | 10 XP + 5 Gems | 100 XP + 10 Gems | 1,000 XP + 20 Gems |
| Heroic Heist Steal an amount of Dark Elixir | 10 XP + 5 Gems | 100 XP + 10 Gems | 1,000 XP + 20 Gems |
| League All-Star Join the top Leagues | 100 XP + 250 Gems | 500 XP + 1,000 Gems | 2,000 XP + 2,000 Gems |
| X-Bow Exterminator Destroy a number of X-Bows | 50 XP + 50 Gems | 100 XP + 100 Gems | 1,000 XP + 200 Gems |
| Firefighter Destroy a number of Inferno Towers | 50 XP + 100 Gems | 500 XP + 200 Gems | 5,000 XP + 1,000 Gems |
| War Hero Source Stars for your Clans. | 50 XP + 50 Gems | 500 XP + 200 Gems | 1,000 XP + 1,000 Gems |
| Spoils of War Collect Golds in Clan War | 100 XP + 25 Gems | 500 XP + 100 Gems | 5,000 XP + 500 Gems |
As you see in the above table, we can easily earn 250 Gems several times by just completing some quite easy achievements in Clash of Clans.
The achievement which has the highest rewards is League All-Star with 2,000 Gems for you if you can hit the Champion league. Going to the highest league is not really hard when you are at Town Hall 9. We have two guides about this topic on Clash of Clans Land are Farming in Champion with GoArch Strategy and Farming in Champion League with Archers. You should read them if you are concerning about going to there.
Friend In Need is one of the hardest achievements in Clash of Clans. I hope this guide will help you complete this one easier.
If you face some problems while trying to achieve these missions, feel free to do a comment and we will try to help you!