The Heart of Gold Add-on for War for the Overworld has 22 achievements.
Destroy all 5 Inhibitors in 25 minutes in level 4 of Heart of Gold
Defeat every member of House Magnanimous in level 4 of Heart of Gold
Defeat every member of House Magnanimous and complete level 4 of Heart of Gold without destroying any of the Gateways
Complete level 4 of Heart of Gold
Use the Blood Money spell 100 times in level 3 of Heart of Gold
Complete level 3 of Heart of Gold
Stop the Empire from mining more than 100,000 gold before you complete the Colossus in level 3 of Heart of Gold
Gather 500,000 gold in 20 minutes in level 3 of Heart of Gold
Defeat Lord Saffire in Heart of Gold
Complete level 2 of Heart of Gold without the Empire patrols discovering you
Complete level 2 of Heart of Gold without allowing any Empire patrols to reach the end of the road
Defeat Lord Coleem in Heart of Gold
Unlock all 12 artefacts in 40 minutes in level 2 of Heart of Gold
Complete level 2 of Heart of Gold
Find and rescue all Neutral units in level 1 of Heart of Gold
Complete level 1 of Heart of Gold
Complete level 1 of Heart of Gold without losing any Sentinels
Destroy all 4 Gateways within 30 minutes in level 1 of Heart of Gold