Play your favorite games in a borderless window; no more time consuming alt-tabs or the risk of crashing.
User reviews:
Very Positive (12 reviews) - 91% of the 12 user reviews in the last 30 days are positive.
Very Positive (423 reviews) - 88% of the 423 user reviews for this software are positive.
Release Date: Jul 23, 2015

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October 8

Ulterius Progress Report: September 2016

A new month, a new progress report. Let's run down some of the stuff we've been working on the past few weeks that will be going into 1.3. check out our development blog for more info and be sure to vote on our Greenlight

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September 23

Vote for Ulterius on Steam Greenlight

These last couple of months we've been hard at work to bring Ulterius to life, we've had an awesome amount of success thanks to the continued support of our users.

We're hoping to bring Ulterius to Steam in order to support its continued development, by offering people a way to contribute to the project. Steam is also a great platform for introducing new users, novice and advanced alike to Ulterius and what it has to offer.

If you're curious about our security, please read up on it here

and make sure to follow us on only our verified social media accounts.



Thank you for your support!

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“Games are best when played full screen, but many won't play nice with Alt+Tab in full screen mode—which means you can't look at your browser for a guide or change the music playing in the background. Borderless Gaming fixes that problem.”

“Without a doubt, this is essential software when considering how many publishers treat PC gaming as an afterthought.”

About This Software

Borderless Gaming forces borderless-fullscreen mode in any game. Stream at any resolution while still being able to easily alt-tab out as if you were in windowed mode. No more risk of crashing in badly optimized games when you want to switch songs or check your email.

A lot of games run smoother when running in a window, the need for V-Sync goes out the window, it's simple to use and you can click and forget. No more apps with overly complex methods of adding games or useless features bloating up your system resources.

It's also open source so anyone can contribute to making it the best tool out there. See the links in the side bar for the releases/source code. When you buy Borderless Gaming you're choosing to support the development. You can always get it free on Github if you're lacking coins.

Enjoy the Borderless Gaming today

System Requirements

    • OS: Windows XP
    • Memory: 50 MB RAM
    • Graphics: Close your eyes and open them to simulate fading effects during operation.
    • Storage: 200 MB available space
    • Additional Notes: Could probably run on a microwave.
Customer reviews
Customer Review system updated Sept. 2016! Learn more
Very Positive (12 reviews)
Very Positive (423 reviews)
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326 reviews match the filters above ( Very Positive)
Most Helpful Reviews  In the past 30 days
2 of 3 people (67%) found this review helpful
43.5 hrs on record
Posted: October 4
It works as its advertised. I've used this program with the Dark Souls franchise, BFBC2, and many other titles that don't natively support borderless windowed and it works just fine.

If you have multiple monitors I suggest that you give this a try.
Was this review helpful? Yes No Funny
2 of 12 people (17%) found this review helpful
2 people found this review funny
Not Recommended
122.6 hrs on record
Posted: October 3
just bought it.... however only skype is showing up as a possible application and none of the tutorials cover how to add a game to favorites list. game: osiris new dawn. will post better review if it actually works
Was this review helpful? Yes No Funny
3 of 19 people (16%) found this review helpful
18 people found this review funny
2.6 hrs on record
Posted: September 28
Lousy Borderlands knock off, would not recomend.
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Most Helpful Reviews  Overall
670 of 734 people (91%) found this review helpful
17 people found this review funny
4.5 hrs on record
Posted: July 23, 2015
If you don't know why borderless fullscreen is so important, you probably game on one monitor. Some of us game on two, and we come to know borderless fullscreen very well. If you're thinking about going dual-monitor, let me fill you in on why this program is so useful.

You're probably already familiar with the "borderless windowed" option alongside the "windowed" and "fullscreen" options in some games' video menus. For a single monitor, borderless window mode is just that fullscreen mode that makes the game not minimize all the way when you alt+tab out of it to do something else, but it's a heck of a lot more if you're working with two monitors.

You know how when you're using regular full-screen mode and you alt+tab out of the game, the screen flashes a little bit when you tab out and back in? If you have a video running on a second monitor, that flash kills it. Sometimes you can fiddle around and get it to work, sometimes you get lucky and it works the first time, but sometimes there's no help. If you game with 2 monitors, this will eventually frustrate you -- and none of it happens if you get the game to run in bordless mode. It's like a magic switch that fixes all that crap, but unfortunately most games still don't have the option.

A year or so ago, I came across this program on the steam forums while dealing with a particularly finnicky old game. I got a copy for free back then and it's been a lifesaver. It's easy to use and I have yet to find a game that it doesn't work on. When I saw they had updated (significantly from the looks of it) and moved to steam, I had no problem throwing a few bucks at the screen for the amount of pain in the ♥♥♥ this program has saved me. It may not make that much of a difference if you game on one monitor, but if you game on two, this is well worth the money.

I should note that sometimes in my experience, it will cut off the bottom and top of the game screen by a few pixels - not enough to matter, but enough to notice. I should also note that it seems to have settings available to fix this, but so far I haven't been inconvenienced enough to try fiddling with them.
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173 of 199 people (87%) found this review helpful
6 people found this review funny
22.0 hrs on record
Posted: July 26, 2015
Borderless Gaming is excellent software. Immediately fixes those games that don't Alt+Tab out well or force into windowed mode instead of tabbing out. Would highly recommend!

Ignore people who are complaining about Steam saying your "In-App" instead of the game you're playing. All you have to do is Disable Steam Integration from inside Borderless Gaming which can be done with one click.

View the developers guide on disabling In-App below:
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65 of 71 people (92%) found this review helpful
4 people found this review funny
26.0 hrs on record
Posted: July 24, 2015
[ENG / FR]


Borderless Gaming, an interesting piece of software, allows you to instantly switch between your games and the rest of your computer contents very quickly by "ALT-TABing". What are the pros and cons for this 8th version?

+Very effective
+No need to set the V-Sync "ON" anymore
+Open source
+Freely available to use at ►
+Compatible with most of the games, may they be from Steam or not
+"Favorites" library to automatically detect and make borderless your chosen games
+Friendly-user developer who listens and answers to his community
+Buying this version includes free updates to upcoming versions

-Lack of a process renaming function in the "Favorites" section (i.e. "Sleeping Dogs" instead of "HKShip.exe")
-A very few games remain uncompatible with Borderless Gaming (Most of them already allow borderless display in options)

Being a user of this software for 2 years now, I think it is really useful to every multi-task gamers.
The software never slows your system down and runs silently at Windows startup if you want to.
I only bought it to support the developer's nice work.

This software is a must have, from low to high performance level computers.

This screenshot shows a few examples ran thanks to Borderless Gaming:


Borderless Gaming est un logiciel intéressant vous permettant de passer instantanément de vos jeux au reste de vos applications via la fonction "ALT-TAB". Quels sont les avantages et inconvénients de cette 8ème version?

+Très efficace
+Plus besoin d'activer la synchronisation verticale
+Open source
+Téléchargeable gratuitement ici ►
+Compatible avec la plupart des jeux, qu'ils soient sur Steam ou non
+Fonction "Favoris", pour détecter automatiquement et afficher sans bordure vos jeux sélectionnés
+Développeur sympathique et réactif vis-à-vis de sa communauté
+Acheter cette version inclut la mise à jour gratuite vers les versions ultérieures

-Manque d'une fonction de renommage des processus dans la section "Favoris" (Par exemple, "Sleeping Dogs" au lieu de "HKShip.exe")
-Quelques rares jeux restent incompatibles avec Borderless Gaming (La plupart d'entre eux proposent déjà la fonction sans bordure dans les options)

En tant qu'utilisateur de ce logiciel depuis 2 ans, je le trouve vraiment utile pour tous les joueurs.
Ce soft ne ralentit jamais votre système et démarre silencieusement avec Windows si vous le souhaitez.
Je l'ai acheté pour apporter mon support au développeur.

Ce outil est un indispensable, qui convient aux PC modestes comme aux PC les plus puissants.

Cette capture d'écran indique quelques exemples de jeux affichés via Borderless Gaming:
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154 of 208 people (74%) found this review helpful
9 people found this review funny
8.7 hrs on record
Posted: July 23, 2015
This software is free and open source. I have used it for well over a year.

By purchasing this it will help support development which I am very happy to do.

I personally use it to make my stream more seamless. Brilliant alternative to using Game Capture.

Thank you.
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78 of 97 people (80%) found this review helpful
20 people found this review funny
64.1 hrs on record
Posted: July 27, 2015
It works... it's glorious... borders suck!
Was this review helpful? Yes No Funny
62 of 73 people (85%) found this review helpful
3 people found this review funny
129.5 hrs on record
Posted: August 7, 2015
A simple program that does exactly what it says and nothing more.
In essence, the program gives a full screen gaming experience with all the advantages of windowed mode.
This allows for seemless switching between windows which is advantagous for streamers and multi taskers.

My only dislike, is that the app does not stop showing that it is in use. This means your friends cannot join you or your game through steam. This is a huge issue which needs fixing.
The steam application Dimm Drive, suffered from a similar issue but was quickly resolved by the developer. Having this application affect steam functionality is a large issue that needs to be adressed.

At the moment I feel positive about this program, but the app taking presidence over games is a large issue for me because my friends cant join my game/server et al, because steam thinks I'm playing Borderless Gaming. This will result in me becomming annoyed with the application over time.

Apart from this oversight, it is a usefull app. It ONLY JUST gets a recommendation from me due to the above issues. I belive the positive outweigh the negative points, but this may be a deal breaker for you.

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39 of 46 people (85%) found this review helpful
3 people found this review funny
307.8 hrs on record
Posted: October 9, 2015
The best way to explain how this works is ..... You know when you alt+tab out of a game and it sometimes messes up the game? Well this makes it so it doesn't mess up the game when you alt+tab out to check your email or check on something else other then the game you are playing. I have used this with many different types of games from Origin games, to many Steam games. I highly recommend this software to everyone as it has helped gaming become more enjoyable.
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Recently Posted
just another William
21.3 hrs
Posted: October 24
Product received for free
It's the little things like this, that makes your life easier.
Helpful? Yes No Funny
1,096.4 hrs
Posted: October 24
Highly recommend. It's been propably the best thing i've bought on steam.
Tho Dishonored refuses to work with this (atleast last i tried) so there might be some titles not compatible
Helpful? Yes No Funny
Jack Nack
14.8 hrs
Posted: October 22
when I first saw this I thought it was going to work well. This software has helpped me in lots of ways. When I need to tab out it doesn't make my game crash because I tabbed out. I recommend this if you alt tab a lot.
Helpful? Yes No Funny
19.1 hrs
Posted: October 21
Simply Amazing. Even works on things not running through steam.
Helpful? Yes No Funny
Capin Finesse
728.6 hrs
Posted: October 20
Cheap and works. Sell some cards you don't want and buy it. 10/10 does what it says.
Helpful? Yes No Funny
251.4 hrs
Posted: October 19
Probably one of the most useful peices of software on this whole shop. 100% worth the money!
Helpful? Yes No Funny
0.6 hrs
Posted: October 19
Product received for free
I love this thing!
very useful specially for those games that don't provide for borderless-window option and very easy to use
Helpful? Yes No Funny
105.4 hrs
Posted: October 19
Very flexible. Works exactly as intended on a variety of products. Notably usefull for older and foreign titles.
Helpful? Yes No Funny
2,471.6 hrs
Posted: October 13
I'm kinda disappointed!

That I haven't used it that much

in any case totally worth the price, works on 98% of the games I have in my steam library and other places
Helpful? Yes No Funny
79.7 hrs
Posted: October 10
It works well and solves the problem of my FIFA 17.
Helpful? Yes No Funny