| Achievement | How to unlock |
| "You're a teacher?" "Part-time" (15 points) | Use Scholar access 10 times.
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| A long time to wait (40 points) | Unlock the Grail Knight. (Single Player Only)
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| Do svidanya, Dr. Jones (15 points) | Destroy Indy with Spalko.
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| Get on, Gramps! (40 points) | Unlock all of the vehicles in the game. (Single Player Only)
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| I'd cover my ears if I were you (20 points) | Fire a Bazooka 100 times.
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| No defiant last words Dr. Jones? (100 points) | Complete the game to 100%. (Single Player Only)
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| Not as easy as it used to be (25 points) | Complete Hangar 51 in under 5 minutes.
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| Now you're getting nasty (40 points) | Unlock all of the enemies in the game. (Single Player Only)
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| Obtainer of rare antiquities (75 points) | Find all the Artifacts in the game. (Single Player Only)
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| Seeing communists in our soup (15 points) | Defeat 50 Russians with Mutt.
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| So what are you, a triple agent? (15 points) | Destroy Indy 3 times with Mac.
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| What are they? Spacemen? (40 points) | Unlock the Interdimensional Being. (Single Player Only)
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| Wow! Holy Smoke! Crash landing! (25 points) | Destroy 100 enemy vehicles.
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| You choose the wrong friends (50 points) | Complete all Story Levels in Quick Play modes. (Single Player Only)
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| You know how to fly, don't you? (35 points) | Complete all plane races. (Single Player Only)
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