Several years ago, another collector and I purchased a large qty of painted video game covers from artist Greg Winters. Greg did many video game related projects including most of the Mega man covers and several Star Wars covers. As part of the deal I also acquired some pencil sketches. There have been several Indiana Jones games over the years and I'm curious which one these might be from.
I'd say the Lucasfilm games' adventures are probably out - no whipping while boxing, and no kicking enemies on the ground (iirc Indy3 didn't have any kicking at all, not sure about 4). The one on the top right looks good though. Bottom right = grapple? Well... Maybe the planned hand-to-hand combat got scaled down (by a lot)? All the 3D titles are probably much too crude to allow for scenes/choreography like this, ie no real need for concept art for it. inb4 it turns out it's from Desktop Adventures
Keep in mind that this illustrator was strictly a box art illustrator. He was not an employee or part of a development team that would create in game graphics. He took these jobs on a case by case basis and these illustration would have been used for the box , instructions or a magazine ad. Some form of printed media.
Whelp, the only box art I could find with any kind of hand-to-hand combat on it was for Fate of Atlantis, and that soon turned out to be the cover of an identically-named comic (issue #4 if you care to look), not a game. Nice artwork though. Next best game cover is Indy pointing a gun at the viewer, with no nazis in sight. Then mostly just portraits and occasionally a bit of whipping... (oh and btw, the second image seems to be broken.)
There are no background elements at all so I don't think this was a front game cover. These are little side illustrations perhaps small illustrations you might find in a manual or book that came with the game or even in the borders the back of the box?
Nothing like that on the Indy 3 & 4 boxes - it's mostly artifacts and stuff on there. Not in the manuals either, they were very plain iirc. 3 also had the "grail diary" booklet, but your sketches wouldn't fit into that, theme-wise. The Infernal Machine paperwork has little aside from ingame shots (think "postcards"), so that's not it either. Greatest Adventures (SNES), from what I can find, seems to be a rather dark "crinkled paper background" style with movie stills, ingame shots and some "clipart" (eg the gamepad), nothing I see your drawings fitting very well into. Only saw a few pages though.
