Dead Island Riptide (Xbox 360) achievements

Dead Island Riptide (Xbox 360)

3.7 from 2920 votes

There are a maximum of 35 Dead Island Riptide (Xbox 360) achievements worth 1,774 (1,000)

43,699 tracked gamers have this game, 5,067 have completed it (11.60%)

Achievement Details

Secret Achievement in Dead Island Riptide (Xbox 360)

Secret Achievement50 (30)

Continue playing to unlock this secret achievement. (Secret)

  • Unlocked by 15,954 tracked gamers (37% - TA Ratio = 1.65) 43,699  

Achievement Guide for Serving Science

282,885 (145,180)
Achievement won on 24 Mar 14
TA Score for this game: 1,774
Posted on 24 March 14 at 09:20, Edited on 05 April 14 at 09:46
This solution has 16 positive votes and 0 negative votes. Please log in to vote.
When Harlow returns in Chapter 3 she will ask you to go to the Research Laboratory in the north east corner of Palanai Island as part of the Way of Science main quest. Inside the Research Laboratory you will meet Dr. Kessler and you will have to complete the Dr. Kessler main quest (Chapter 4). Dr. Kessler will then give you the History Lesson side quest and you must perform the following actions:
- Wait until you get access to the tunnels
- Get inside the old tunnels
- Find clues for Dr. Kessler
- Collect a sample of the toxic substance
- Find anomaly
- Collect a tissue sample
- Find notes
- Talk to Kessler

You will not be able to get into the tunnels to complete this side quest until you have completed the following main quests:
- House of God (Chapter 5)
- Pump Action
- Change of Plans
- Heavy Equipment
- Stalwart Defense
- The Tunnels (Chapter 6)

You can go back through the tunnels to Dr. Kessler to get the achievement and your Golf Club reward, or you can fast travel to the Research Laboratory after completing the The Crossing and the Terminal Siege main quests.
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