There are no known download links for this game.

Have you played this game?

You can rate this game, record that you've played it, or put it on your wish list after you log in.

Playlists and Wishlists

RSS Feeds

New member reviews
Updates to downloadable files
All updates to this page


by Cryptoshelly profile

Episode Season 1 of SENTINEL

Web Site

(based on 3 ratings)
1 review

About the Story

You are a rookie agent enlisted into SENTINEL, a new program of the C.I.A.

Your task is to gather intel for the team to progress in the game's story.
This intel is hidden in a variety of puzzles, ciphers and codes. You also
have to use your online search skills to get the info needed to complete
the puzzles.

Good luck on your missions!

Game Details

Language: English (en)
First Publication Date: January 14, 2018
Current Version: 1.0
License: Freeware
Development System: Twine
Forgiveness Rating: Tough
IFID: 9FF81AE7-DFD0-4613-953E-83928ECEB840
TUID: pwy2znb76s9i5lbt


- View the most common tags (What's a tag?)

(Log in to add your own tags)

Member Reviews

5 star:
4 star:
3 star:
2 star:
1 star:
Average Rating:
Number of Reviews: 1
Write a review

1 of 1 people found the following review helpful:
A puzzle-driven story...or a story-driven puzzle? YES! :), February 16, 2019

If you're into puzzles and ciphers, and want to play the role of a secret agent, then you should give Sentinel a try! Though the game is light on narrative, the story serves to connect one puzzle to the next, as you gather intel and piece together who killed your colleague (and more as the story unfolds). The puzzles are creative and challenging, requiring the reader to conduct research online and also stretch his or her critical-thinking skills. Though this story uses Twine, there are no divergent story paths, rather the system serves to deliver the story and to check puzzle answers. I confess that I needed more hints than I care to admit. There are more puzzles to come, so the current conclusion is a little anticlimactic. I need more puzzles to solve and for the story to come to a resolved conclusion!

UPDATE: Many more puzzles have been added, and though I think some are very difficult, I really enjoyed playing them. Just remember that this is not 'traditional' IF. It is a puzzle / cipher adventure that is delivered via Twine.

If you enjoyed SENTINEL...

Related Games

People who like SENTINEL also gave high ratings to these games:

9:05, by Adam Cadre
Average member rating: (496 ratings)
The phone rings. Oh, no how long have you been asleep? Sure, it was a tough night, but... This is bad. This is very bad. The phone rings.

Mrs. Pepper's Nasty Secret, by Jim Aikin and Eric Eve
Average member rating: (38 ratings)
Walking home from school is mostly okay, except for one big problem: Every day you have to pass right by Mrs. Pepper's house. She may not actually be a witch, but she sure acts like one. And now she's stolen your skateboard! Winner of...

Bronze, by Emily Short
Average member rating: (265 ratings)
When the seventh day comes and it is time for you to return to the castle in the forest, your sisters cling to your sleeves.

Suggest a game

This is version 4 of this page, edited by Cryptoshelly on 23 January 2019 at 11:03am. - View Update History - Edit This Page - Add a News Item