In many games, you unlock ancient discoveries and acquire grand treasures as a reward. But not all tombs offer something grandiose, and a long trek down a musty corridor may sometimes yield disappointment.

Deadfall Adventures is one such trek. The game draws its history from H.R. Haggard’s Allan Quatermain series of adventure novels written in the late 1800s, but the plot of Deadfall Adventures bears a closer resemblance to the Indiana Jones movie–which were in part inspired by Haggard’s books–than to Haggard’s books themselves. Set in 1938, Deadfall Adventures stars Allan’s great-grandson, James Quatermain, a hard-drinking, hard-fighting adventurer who must keep an all-powerful ancient artifact from Nazis who will use its power to gain an edge in the upcoming world war. Similar…