The Zoo Tycoon Achievement
The Zoo Tycoon50
Receive all 20 awards in the same zoo (Challenge Mode only).
These achievements require that you receive all 20 awards in a single Challenge Mode zoo. Awards can be found in the Edit Main Gate Menu, under Awards, and are mostly milestones that you will naturally pass when expanding your zoo. There are awards for reaching Fame Ranking 30, adopting certain animals, building certain habitats/concessions/decorations, having all the exhibits, reaching guest rating 10,000, releasing 100 animals, and breeding 100 animals, plus several easier ones. These will all come naturally as you work through breeding animals for the "One of Everything" achievement.