Puzzle based modification for Source engine. Two world dimensions + two timelines, simple but unusual game mechanics.

Requirements: Windows, Steam, Source SDK Base 2007 (comes with any Valve game, including free-to-play TF2)

Feedback form

Follow this project on Twitter

Image RSS Feed Screens
A screenshot from upcoming tech demo. A screenshot from upcoming tech demo. A screenshot from upcoming tech demo.

This is all... for the moment. I tried to get you a polished and clean final release. Thank you all for the feedback and help received, too few for my needs but useful in any case.

Regarding bug department, a couple of serious bugs have been fixed: energy balls not able to hit bot instances and a player speed decrease after reload. Pretty nasty ones yeah, should be all fine now.

There are some new features too. First one is stats tracking. Getting along with puzzle game development is pretty hard if you have no precise data to improve the player experience. Therefore, I implemented a simple system which collects variables like time spent in each puzzle, reload amount, instance switches, deaths, etc. Then it gets emailed back to me, I plan to create some statistical data based on it. If results are meaningful, I'll share them with all of you.

There also was needed something I call ‘gel door'. It is a new multipurpose object that separates physically rooms, or different areas of each room. Only specific classes can go through each gel door, so player knows which bot class is meant to get you out of a room. This device also prevents any object to be carried away. Visual contact isn't possible through the gel door either.

Most levels have been reworked, partially or totally in some cases. I'm aiming for a better learning curve and higher coherency among puzzles. A new kind of puzzle is also introduced: the dual maze. As some sort of sadistic last challenge, player must get out of a very special labyrinth. Part of the complexity is it shifts around you because your own moves transform it dynamically. It's so complex and confusing that I created this video, I get lost around the middle for a bit ^^ This isn't the only solution, by the way.

There could be a final post describing my experience with the tech demo if I see it fits somehow. For the moment that's all I can offer, hope you enjoy it and please don't stop mentioning the old videos looked much better than this. I couldn't live without it :p

New version available, progress detail and some questions for you.

New version available, progress detail and some questions for you.

4 years ago News 10 comments

Tech demo 0.2 features an improved control scheme and some new/revised puzzles.

Tech demo released!

Tech demo released!

4 years ago News 12 comments

Puzzle based modification for Source engine. Two world dimensions + two timelines, simple but unusual game mechanics.

Tech demo to be released *soon*.

Tech demo to be released *soon*.

4 years ago News 4 comments

After a while... fresh news for you.

Singing in the rain.

Singing in the rain.

5 years ago News 44 comments

Learn about interdimensional travel with Gman. A new interactive game may grant you early access!

Puzzle based modification for Source engine. Two world dimensions + two timelines, simple but unusual gameplay mechanics.
Tech demo 0.3 (final)

Tech demo 0.3 (final)

4 years ago Demo 1 comment

Requirements: a computer capable of running Source engine games, Source SDK Base 2007. If installer doesn't work as supposed, uncompress it manually to...

Post comment Comments  (40 - 50 of 148)
TheSniperFan Mar 26 2011 says:

It's been a bit silent in the last time.
I really, really hope that this mod didn't die.
I'm so looking forward to play this.

+1 vote     reply to comment
PhaserRave Feb 9 2011 says:

I hope all is going well!

+3 votes     reply to comment
R_Yell Creator
R_Yell Feb 21 2011 replied:

Thx for your interest and sry for late reply :) Well, I'm finding my way into dual reality. May take time but something will emerge from this experience eventually.

+1 vote   reply to comment
Cyberpresident_CORE Nov 15 2010 says:

A this BIG technical advancement just deservers a good vote.

+1 vote     reply to comment
CarnifexX Nov 6 2010 says:

i love this singing in the rain video and the song :>

+1 vote     reply to comment
maddima Nov 6 2010 says:

cool concept!!!

+2 votes     reply to comment
Dec1234 Oct 26 2010 says:

Such an awesome concept. Really looking forward to one day giving this a play. Heck, im excited for your next video!

Keep up the good work.

+1 vote     reply to comment
Phenixtri Oct 25 2010 says:

I was thinking about making a similar multi dimensional concept mod for CS2D but lately I have been bogged down with the HL2D mod so yea I have alot of script material & research done into real scientific theory's on dimensions. If you like I can send them to you as reference materials.

I also have alot of concept short stories & scripts you can use for developing a main character for your mod. So yea if your are interested PM me.

Good luck with your mod m8

0 votes     reply to comment
R_Yell Creator
R_Yell Oct 26 2010 replied:

Hey, that sounds interesting, PM sent :)

+2 votes   reply to comment
Foxtrop Oct 14 2010 says:

It looks promesing! The idea is great, but consuming psicotropics is not good jajaja! tracking!

+1 vote     reply to comment
Post a Comment
click to sign in

You are not logged in, your comment will be anonymous unless you join the community today (totally free - or sign in with your social account on the right) which we encourage all contributors to do.

2000 characters limit; HTML formatting and smileys are not supported - text only

Half-Life 2 Icon
Developed By
Send Message
Release Date
Released 2011
Mod Watch
Track this mod
Community Rating



26 votes submitted.

You Say


Ratings closed.

Puzzle Compilation
Single Player
Embed Buttons

Promote DUAL)(REALITY on your homepage or blog by selecting a button and using the embed code provided (more).

Last Update
4 years ago
708 members