There is no guide for this game yet. But apparently it is EASY POINTS!

Asps very dangerous you go first - 15 points

Complete all Story Mode Levels in Raiders Hub

I don’t believe in hocus-pocus - 20 points

Complete all Treasure Mode Levels in Raiders Hub

He was good, he was very good - 25 points

Complete all Bonus Levels in Raiders Hub

You betrayed Shiva! - 15 points

Complete all Story Mode Levels in Temple of Doom Hub

*I'm* a conceited ape? - 20 points

Complete all Treasure Mode Levels in Temple of Doom Hub

You dare not do that - 25 points

Complete all Bonus Levels in Temple of Doom Hub

We named the dog Indiana - 15 points

Complete all Story Mode Levels in Crusade Hub

I can almost reach it! - 20 points

Complete all Treasure Mode Levels in Crusade Hub

Our situation has not improved - 25 points

Complete all Bonus Levels in Crusade Hub

I thought that was closer - 15 points

Complete all Story Mode Levels in Skull 1 Hub

I meant drop dead... Comrade - 20 points

Complete all Treasure Mode Levels in Skull 1 Hub 

What are you, like 80? - 25 points

Complete all Bonus Levels in Skull 1 Hub

Grab the snake! - 15 points

Complete all Story Mode Levels in Skull 2 Hub

We're not grave robbers - 20 points

Complete all Treasure Mode Levels in Skull 2 Hub

You’re one crazy old man - 25 points

Complete all Bonus Levels in Skull 2 Hub

Three times it drops! - 15 points

Complete all Story Mode Levels in Skull 3 Hub

They were archaeologists! - 20 points

Complete all Treasure Mode Levels in Skull 3 Hub

Into the space in-between spaces - 25 points

Complete all Bonus Levels in Skull 3 Hub

Wiped clean by the wrath of God - 25 points

Edit a Bonus level in the Builder

And I even like the color - 20 points

Create a validated Builder level

What are you looking at Daddy-o? - 10 points

Create a customised character

I taught you self-reliance - 15 points

Complete the Builder Tutorial levels

What a vivid imagination - 20 points

Complete a "Build Your Own Adventure"

Secret Achievements

Seeing communists in our soup - 15 points

Defeat 50 Russians with Mutt

So what are you, a triple agent? -15 points

Destroy Indy 3 times with Mac

“You're a teacher?” “Part-time” - 15 points

Use Scholar access 10 times

Obtainer of rare antiquities - 75 points

Find all the Artifacts in the game. (Single Player Only)

I’d cover my ears if I were you - 20 points

Fire a Bazooka 100 times

You know how to fly, don't you? - 35 points

Complete all plane races (Single Player Only)

Not as easy as it used to be - 25 points

Complete Hangar 51 in under 5 minutes

Do svidanya, Dr. Jones - 15 points

Destroy Indy with Spalko

A long time to wait - 40 points

Unlock the Grail Knight (Single Player Only)

Now you're getting nasty - 40 points

Unlock all of the enemies in the game (Single Player Only)

Wow! Holy Smoke! Crash landing! - 25 points

Destroy 100 enemy vehicles

Get on, Gramps! - 40 points

Unlock all of the vehicles in the game (Single Player Only)

You choose the wrong friends - 50 points

Complete all Story Levels in Quick Play modes (Single Player Only)

What are they? Spacemen? - 40 points

Unlock the Interdimensional Being (Single Player Only)

No defiant last words Dr. Jones? - 100 points

Complete the game to 100% (Single Player Only)