Here is the full list of all 44 Ranger of the Jungle achievements.
The Elemental Tower Talent
3 Stars,Stage5,NORMAL
The Lightning Ancient Talent
3 Stars,Stage4,NORMAL
Click All Tower Talents
Build 50 Towers
Defeat The Dark Warlord
The Guard Tower Talent
Get One Hero to Lvl. 3
Complete Mode 2
3 Stars,Stage3,NORMAL
Defeat The Ancient Behemoth
3 Stars,Stage6,NORMAL
3 Stars,Stage7,NORMAL
Get One Hero to Class 5
3 Stars,Stage8,NORMAL
Get One Hero to Lvl. 5
Defeat The Frost Giant
Collect 5 Heros
3 Stars,Stage9,NORMAL
Defeat The Knarama
Defeat The Demara
Build 100 Towers
Altar Plunder 50 Times
Altar Plunder 100 Times
Altar Recruitment 50 Times
Altar Recruitment 100 Times
Kill 3000 Creeps
Kill 5000 Creeps
Kill 10000 Creeps
3 Stars,Stage3,DIFFICULT
3 Stars,Stage6,DIFFICULT
3 Stars,Stage9,DIFFICULT
3 Stars,Stage12,DIFFICULT
3 Stars,Stage15,DIFFICULT
Collect 18 Stars
Collect 36 Stars
Collect 54 Stars
Collect 72 Stars
Collect 90 Stars
Complete Mode 3
Hero Kael
Hero Selri
Hero Ellis