Rio Grande Games (in the US)
10 and up (although really should be 12-13 and up)
low, but involved
Geography, Africa as subject, history, issue of exploration.
30-45 minutes (to be thorough)
It looks pretty and will have some critical thinking issues: do you press on with exporation or go back and claim your fame and hope no one else finds other, more famous things. Similar to â€œSource of the Nileâ€ by Avalon Hill.