One Eye Open by Colin Sandel and Carolyn VanEseltine

Had you known the bloody history of Corona Labs, you would never have signed up as a test subject. But now, plunged into that history, surrounded by the damned and the dying, you must find the truth. Perhaps you will even survive it.

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Information in this game listing is copyright David Welbourn, Emily Short, is taken from IFDB, and is licensed under a Creative Commons Attribution 3.0 United States License.

Comment Nicole86

04 Oct 2024

Loved it! *ENDING SPOILER ALERT* But I don't fully understand what The Wheel meant in the end :(
Sounds like something meaningful. Anyone knows plz??

Comment Yellowfang112233

16 May 2024

does anyone have all nine endings? i only have eight and i've been wondering the last one for the like past two years lol

Review acsmitte

15 Jun 2023

This game is fantastic. It’s very weird too, so I find it thrilling. It’s even better when you don’t know anything about the game. Just stumble around and test everything you can. See what comes of it! I haven’t finished the game yet, I’m in the beginning. I’ve only found one minor discrepancy and I emailed the developers today. It was only a thing about wording for room 321 and 322, when you examine the signs for both of them one of the sign descriptions will switch the location of the room. 322 is supposed to be north, 321 is south, but it’ll say vice versa then switch back again on the other sign. It’s really no big deal especially when you find the map. I haven’t read the other comments for fear of spoilers…the one strange thing that happens in the beginning that I can’t find anything about anywhere online, is……………..

The NEXT PART IS A MINOR SPOILER SPOILER SPOILER SPOILER SPOILER !!!!!!!ALERT!!!!!!!

In the beginning when you leave the test chamber and go past the antechamber into the hallway to the west, when you attempt the go into the hallway your stopped, by some weird sense or physical ailment, then immediately when if you check your inventory you’ll notice the picture and folder from the test chamber are gone. Also the test chamber won’t open now. It’s so weird. I have a possible theory, but I’m not going to say. I don’t want to spoil it for those that haven’t played yet and decided to read my little spoiler.

Comment AxisOliveYT

01 Feb 2023

I broke it :( I concentrated on the photo twice in a row and it softlocked.

Review Török Márk

21 Dec 2021

Even though the next step was oftentimes quite far from obvious, the nice plot and the genuine clues (HINT) compensated for it. I agree with those before me: EXITS comes in handy as descriptions do not always mention them.

Review Savio

09 Mar 2021

A game of genuine quality.

So much to like: The nightmarish mood, the attention to detail in the writing about the settings and staff of the facility (past, present and future), the CONCENTRATE command....

Well worth a few hours of any horror fan's time.

Review TextCreator27

30 Nov 2020

Too complicated for me. I don't really know how I'm supposed to answer what I see on the card Dr. Ephart is holding up when all I can do is "concentrate" on it.

Comment Amber3

13 Oct 2020

If your stuck try typing "exits"!!! This helped me more than once because the game doesn't list out all exits all the time

Comment kdjack

01 Jun 2020

So that lab name aged well

Comment space boy

18 May 2020

lol Corona labs i feel like someone was predicting something

Review space boy

18 May 2020

Finally a game where I can literally explore everything. this made me look in places other games taught me were stupid and I love the chilling detail. I haven't finished but I love it so much man.

Comment twistedthoughts17

12 Feb 2020

This is an amazing game and I love it :0
But, um, I saved a game and can't load the file. The 'LOAD' command isn't recognized, I guess?
Either way, I love this game, good job!

Review Kittpire

10 Nov 2019

Give my 100% seal of approval for this masterpiece! Great storyline if you look deep enough and are a good searcher in text based games!

Review thecreaturessing

03 Aug 2019

This game is very imaginative and suspenseful. Even though there is gore, it's not the main sense of unease and is more there to help steer you in the right path. The plot and writing are well thought out and I appreciate how much effort that must have been put into creating this.

Review rlperki1

21 May 2019

i literally cant figure out how to play after the first card is displayed

Comment VolarVie

19 Apr 2019

I love it so far, the only gripe I have with it is that it doesn't store save files on the account, and instead it saves to the computer itself. Often times I play this on school laptops, and rarely, if ever, do I get the same laptop as before.

Review thecanvasrose

22 Dec 2018

A great game with lots to explore, great twists and turns, and a wonderfully spooky environment for play. If you haven't played it before, give it a whirl. It isn't quite like any other IF I've ever played. Scary, but not too nasty- like all good horror, it relies on suspense as opposed to pointless gore.

Comment thecanvasrose

20 Dec 2018

This is a fun and suspenseful game, and I'd recommend it to people who like a good spook.

Comment Nemmiriel

07 Sep 2018

For anyone having trouble with loading their save file - the HELP list is misleading. It lists LOAD as a command which doesn't work. Only when you go to VERBS list, you learn that the proper command to load a file is, in fact, RESTORE. Because it is SO much more intuitive than a simple "load"... right? A great game besides that.

Comment MissIndeedy

13 Jun 2018

Having trouble loading my saved game? I saved numerous times in case of glitching and it said it saved but cant figure out how to load the game save??? really really really want to finish this game lol please help.

Comment Auni_007

31 Jan 2018

** MAYBE SPOLIER** How do you get out of the autopsy and morgue room the door is locked and it won't met me to go through the tunnel , HELP

Review Laraqua

26 Dec 2017

I really loved this game! There's so much going on and while it was tricky to begin with, once I paid attention and saw I could List Verbs and even get Hints if I got really stuck it was great! Especially because this is one of the first text adventures I've played in a couple decades so I was really rusty on how to play them. A fantastic game and one that makes you keep thinking afterwards.

Comment epiales

21 Dec 2017

I loved this game years ago and I've been trying to replay it, but the parchment page won't load no matter what I try and Google doesn't help any, does anyone know what to do?

Review youareso

06 Dec 2017

a masterpiece of suspense and horror.

Comment Amber Chase

24 Oct 2017

**SPOILER** I need help!

Does anyone know how to save the scientist from his phone in the elevator?

Review starsallfall

21 Oct 2017

I'm really interested in the story... but I have no idea how to do anything. How do you play this?

Review ShatterThePieces

06 Apr 2017

I haven't played all of it, but it is amassing!

Review gymnast_911

08 Feb 2017

its fantastics

Comment gymnast_911

08 Feb 2017

its very good I love it

Comment bunnyfiscuit

20 Oct 2016

Confused Otaku, I've just passed that phase and i'm stuck on the next one.
If you want to guess on the wavy lines, you have to type "press wavy lines"
that worked for me.

I'm also very confused on how to tell the console that i'm ready to continue.

Review mollym24

24 Jul 2016

INCREDIBLY well written. An immense amount of painstaking detail and imagery really made me feel like I was there, and added to the urgency of each task that needed to be completed. Also, delightfully complex I had to use the hint and concentration features several times and reaching the first ending still took me a great deal of time. Would love to go back and explore the other endings as well, as the one I arrived at was a pleasantly frustrating resolution that left me feeling as if I could have done better (in a good way). While these elements made it long and difficult, that's what I look for in a game like this, I don't want there to be a clear cut path for me to follow, and one simple and satisfying resolution. Intensely creepy and horrifyingly vivid images were rampant throughout each scene that truly made me nervous to play this game while alone. The only criticism at all that I have for this game is that now I'll be sad to play anything else as it will pale in comparison to the masterful writing and organization of this game. Well done!

Comment Samm3

20 May 2016

So, I'm having trouble with the safe in Theo Yehuda's office. Does anyone know of anything that'll help me crack it?

Review heartbreak_star

17 May 2016

Brilliant, brilliant game. Suspenseful, unusual, and in many ways shocking, this is a well-thought-out piece of gamecraft. Thank you very much for it :)

Review Something Moving Under The Bed

15 Apr 2016

This is an in-depth game, which really works with its subject matter... I got really engrossed in the story, and there is a lot of detail to all the characters involved in the setting- For those who get really interested in all the snippets of information you can gather it's possible to learn a complicated picture of all the people involved, how they all related, and what happened to them. I loved the feeling of helplessness at points when seeing things from others' perspectives, and always wondered if I tried just a little harder whether things could be changed...!
It's well researched and so much effort has gone into the setting, and in many ways it's very unique, has some wonderfully realised sections and never goes in for cheap scares but builds up an atmosphere along with its story.
If anything it's this depth that I felt a little disappointed in at the end... You get to know (if you pay attention) so many details about so many people, and try so hard to help them - and then when the ending comes, it comes quite quickly and surreally and not much of the grander story seems involved, just very rich padding in the background; the format seemed set, even with all the endings. I guess that's a curse of very detailed storytelling- when you get interested in all the details, suddenly it has to end!

(Prizing originality in eerie storytelling - somethingmovingunderthebed.com)

Comment calystaire

30 Jul 2015

Got stuck in some scientist's body and I don't know what to do, pressed VERBS for help but accidentally exited from the game tried to restart but parchment has error and could not load. Please help ;_;

Review MisterPibb316

15 May 2015

This is a horror game through and through, and from what I played of it to reach the first ending (I mostly followed the in-game walkthrough... if you don't, expect a massively time-consuming play, though one in which you might learn all sorts of information that enables you to understand the story more thoroughly), it is jump-scare free, which I greatly appreciate that. The morbid descriptions (including the word choices per se) are enough to put a pit in your stomach without you needing to hear sudden screams or look at images of bloody bodies, so kudos to the developers for sticking to text to get their gruesome ideas across.

With that said, this game isn't of typical puzzles--the 'correct' choices largely involve walking into the correct rooms, or performing actions you may not think to do on your own, such as (***MILD SPOILER*** doing things to corpses ***END MILD SPOILER***), but it is all the more bothersome that these actions are what the game is, indeed, looking for. I confess that 'guess the verb' (though the HELP command can make matters easier) is one of my least favorite kinds of text adventure, but what One Eye Open aims to do, it does (mostly) right.

Comment ZoeDaZambie

23 Apr 2015

I can't get past the elevators, and I can't concentrate on anything to progress.

Review ZoeDaZambie

23 Apr 2015

So far, I haven't finished it yet, but it seems fantastic!

Comment Scarlett Phantom

01 Apr 2015

@alexandrajohnson What do you not get?

Also, does anybody know what the typewriter key could've been used for? I never found anything to use it on....

Review Scarlett Phantom

01 Apr 2015

Oh my god, this was an amazing game! It was rather difficult at times, and there were some parts that didn't make a ton of sense at the time, but were (for the most part) cleared up by the end. I liked the fact that you could get different endings, and that if you saved just before you went into the testing room, you could probably get all those endings.
I feel like I missed something, though... I had a typewriter key at the end that I never did anything with.

Comment alexandrajohnson

05 Mar 2015

dont get it

Comment Kanto Ruki

17 Feb 2015

@Confused_Otaku text based games commonly have the command "help" to assist you with how to play. A nice thing to remember for any text game, especially if your new to them :3

Comment Confused Otaku

28 Dec 2014

Being new to text based games, I'm having problem with the whole syntax guessing, or "guess the verb" part of this game. Can some one help? Right now I'm trying to tell the Dr (either of them would be fine) that i see the wavy lined card, but I can't seem to phrase it right...

Review CFS

17 Aug 2014

This game is almost perfect. You never get bored, you never have to repeat certain routines over and over again. The game can be difficult sometimes and you can even die. However, before imminent death there's usually a warning. Still some minor bugs (continuity issues that don't affect the plot) but overall flawless. The game offers several endings and all of them are very surprising. This game is worth coming back once in a while and trying to solve it differently each time you play. I would really appreciate to see more from the developers who did a great job.

Review Stone Rose

03 Jul 2014

One Eye Open is a very well-written, in-depth game. It is at times somewhat confusing, however the implementation of a hint system as well as a rudimentary walkthrough is sufficient to get through all but the very end of the game. Be certain to utilize the "exits" command as not all exits are clearly mentioned in the initial room descriptions. Overall, the game is extremely enjoyable. I look forward to playing it through again and experimenting with different options to get more of the endings.