Indiana Jones and his Desktop Adventures is a cute game that doesn't require a lot of memory and is really fun to play. In Desktop Adv., you play as Indy, and you must retreave artifacts and solve puzzles to beat each level. There are no set amount of levels, and you can replay the same stories as many times as you want. Each level takes about a half an hour to complete (but varies as you get better:). It requires Windows 3.1 or higher, 436/88 or higher, 8MB ram, 256 colors or better. I have it on PC, but it probably works for MAC too. It is priced around $10.00-$18.00.
Indiana Jones and the Fate of Atlantis is a role-playing game. It is available through the LucasArts Archives no. 1 game set, although I haven't seen it sold seperatley. It is for MAC and PC (although its easier to get for MAC). It is priced for about $15.00-20.00.
Indiana Jones' Greatest Adventures is the first Indy game for Super Nintindo. It has great action sequences, including the famous boulder scene. It is priced for around $65.00.
Indiana Jones and the Infernal Machine is a new 3D game from LucasArts. It is a tomb-raider sytle game. The game has been released! You can also download a demo of Indy Infernal from the web.
Indiana Jones and the Last Crusade is a very old game to be played in MS-DOS that was not around too long. This game is called an Action Game but its so old and the graphics are so cheesy its more funny than action filled. This game is not even manufactured anymore, but by searching diligently on the web (like me:) you can probably find it for a really cheap price at a used online store. (I got it for $5).