# Portal 2 built on Alien Swarm Engine? **URL:** \ **Category:** General\ **Created:** [April 13, 2011, 6:48pm UTC](https://forums.sourceruns.org/t/portal-2-built-on-alien-swarm-engine/1781 "2011-04-13T18:48:02Z")\ **Posts on this page:** 20\ **Page:** 1
**Author:** ![execut4ble](https://b-cdn.sourceruns.org/user_avatar/forums.sourceruns.org/execut4ble/32/14_2.png) [@execut4ble](https://forums.sourceruns.org/u/execut4ble)\ **Post date:** [April 13, 2011, 6:48pm UTC](https://forums.sourceruns.org/t/portal-2-built-on-alien-swarm-engine/1781/1 "2011-04-13T18:48:02Z")
Hai! You should probably know that Valve released Portal 2 to download for the users, who pre-ordered the game. However, you cant launch it yet. A friend of mine managed to launch it by modifying 2 files of Portal 2 (dont know which ones exactly). I asked him what engine does the game use, and he answered that it’s probably built on Alien Swarm engine. So, if this is true, it means that the Portal 2 wont have bunnyhop/abh? Keep your fingers crossed. ---
**Author:** ![TYPICAL](https://b-cdn.sourceruns.org/letter_avatar_proxy/v4/letter/t/dfb087/32.png) [@TYPICAL](https://forums.sourceruns.org/u/TYPICAL)\ **Post date:** [April 13, 2011, 7:02pm UTC](https://forums.sourceruns.org/t/portal-2-built-on-alien-swarm-engine/1781/2 "2011-04-13T19:02:42Z")
You’re worried about the wrong glitches. ABH was only very slightly useful in the Portal 1 run. Every other OOB glitch was the best thing in the world. ---
**Author:** ![Inexistence](https://b-cdn.sourceruns.org/letter_avatar_proxy/v4/letter/i/d26b3c/32.png) [@Inexistence](https://forums.sourceruns.org/u/Inexistence)\ **Post date:** [April 13, 2011, 10:00pm UTC](https://forums.sourceruns.org/t/portal-2-built-on-alien-swarm-engine/1781/3 "2011-04-13T22:00:47Z")
No way they’ll have left the OoB glitches in. Also, if there’s a way of playing Portal 2 early. Give. ---
**Author:** ![execut4ble](https://b-cdn.sourceruns.org/user_avatar/forums.sourceruns.org/execut4ble/32/14_2.png) [@execut4ble](https://forums.sourceruns.org/u/execut4ble)\ **Post date:** [April 14, 2011, 5:52am UTC](https://forums.sourceruns.org/t/portal-2-built-on-alien-swarm-engine/1781/4 "2011-04-14T05:52:26Z")
I dont actually have Portal 2 pre-ordered, and I dont even know how could you launch it. [Here is my friend’s Steam Profile](http://steamcommunity.com/id/henky). Ask him. Im also not sure if this is legal or VAC safe. Use it at your own risk 😃 ---
**Author:** ![Cameron\_D](https://b-cdn.sourceruns.org/user_avatar/forums.sourceruns.org/cameron_d/32/251_2.png) [@Cameron\_D](https://forums.sourceruns.org/u/Cameron_D)\ **Post date:** [April 14, 2011, 6:10am UTC](https://forums.sourceruns.org/t/portal-2-built-on-alien-swarm-engine/1781/5 "2011-04-14T06:10:19Z")
No, its not, its the other way around. Alien Swarm is built off a branch of the Portal 2 engine. ---
**Author:** ![TYPICAL](https://b-cdn.sourceruns.org/letter_avatar_proxy/v4/letter/t/dfb087/32.png) [@TYPICAL](https://forums.sourceruns.org/u/TYPICAL)\ **Post date:** [April 14, 2011, 12:13pm UTC](https://forums.sourceruns.org/t/portal-2-built-on-alien-swarm-engine/1781/6 "2011-04-14T12:13:00Z")
I’m not going to risk it. I have enough problems with Valve even when I’m trying to do legit stuff. Forget things that they never meant me to do. > Forget things that they never meant me to do. HA, Did I really type that? ---
**Author:** ![Centaurium](https://b-cdn.sourceruns.org/user_avatar/forums.sourceruns.org/centaurium/32/206_2.png) [@Centaurium](https://forums.sourceruns.org/u/Centaurium)\ **Post date:** [April 14, 2011, 1:00pm UTC](https://forums.sourceruns.org/t/portal-2-built-on-alien-swarm-engine/1781/7 "2011-04-14T13:00:00Z")
How could he have possibly been able to launch it, decrypting a game like this would take so much work. ---
**Author:** ![TYPICAL](https://b-cdn.sourceruns.org/letter_avatar_proxy/v4/letter/t/dfb087/32.png) [@TYPICAL](https://forums.sourceruns.org/u/TYPICAL)\ **Post date:** [April 14, 2011, 1:31pm UTC](https://forums.sourceruns.org/t/portal-2-built-on-alien-swarm-engine/1781/8 "2011-04-14T13:31:15Z")
Lets ask Foust. ---
**Author:** ![Centaurium](https://b-cdn.sourceruns.org/user_avatar/forums.sourceruns.org/centaurium/32/206_2.png) [@Centaurium](https://forums.sourceruns.org/u/Centaurium)\ **Post date:** [April 14, 2011, 7:32pm UTC](https://forums.sourceruns.org/t/portal-2-built-on-alien-swarm-engine/1781/9 "2011-04-14T19:32:10Z")
Let’s ---
**Author:** ![Cameron\_D](https://b-cdn.sourceruns.org/user_avatar/forums.sourceruns.org/cameron_d/32/251_2.png) [@Cameron\_D](https://forums.sourceruns.org/u/Cameron_D)\ **Post date:** [April 15, 2011, 1:49pm UTC](https://forums.sourceruns.org/t/portal-2-built-on-alien-swarm-engine/1781/10 "2011-04-15T13:49:31Z")
You don’t decrypt the files, there is some thing that you can do where you change the AppID of some other game so it looks like you are running Portal 2 but you are really running something else. ---
**Author:** ![Centaurium](https://b-cdn.sourceruns.org/user_avatar/forums.sourceruns.org/centaurium/32/206_2.png) [@Centaurium](https://forums.sourceruns.org/u/Centaurium)\ **Post date:** [April 15, 2011, 1:52pm UTC](https://forums.sourceruns.org/t/portal-2-built-on-alien-swarm-engine/1781/11 "2011-04-15T13:52:34Z")
Eh? I tried opening a lot of the files myself, including the .txt’s. Are you sure about this? ---
**Author:** ![TYPICAL](https://b-cdn.sourceruns.org/letter_avatar_proxy/v4/letter/t/dfb087/32.png) [@TYPICAL](https://forums.sourceruns.org/u/TYPICAL)\ **Post date:** [April 15, 2011, 2:06pm UTC](https://forums.sourceruns.org/t/portal-2-built-on-alien-swarm-engine/1781/12 "2011-04-15T14:06:39Z")
Isn’t that a lot of re-wiring? I have some idea of how it would work but… not enough of an idea… ---
**Author:** ![D4rw1N](https://b-cdn.sourceruns.org/user_avatar/forums.sourceruns.org/d4rw1n/32/15_2.png) [@D4rw1N](https://forums.sourceruns.org/u/D4rw1N)\ **Post date:** [April 17, 2011, 10:36am UTC](https://forums.sourceruns.org/t/portal-2-built-on-alien-swarm-engine/1781/13 "2011-04-17T10:36:56Z")
I’ve been in the new Valve ARG chat a lot. And as soon as someone mentions it, they reject it immediately. Basically if you see anyone playing Portal 2 they’re probably trollin’. ---
**Author:** ![Cameron\_D](https://b-cdn.sourceruns.org/user_avatar/forums.sourceruns.org/cameron_d/32/251_2.png) [@Cameron\_D](https://forums.sourceruns.org/u/Cameron_D)\ **Post date:** [April 17, 2011, 1:27pm UTC](https://forums.sourceruns.org/t/portal-2-built-on-alien-swarm-engine/1781/14 "2011-04-17T13:27:32Z")
1 days, 08:30:32 to Portal 2 release 😃 (Assuming the GLaDOS@home stuff works out to plan) ---
**Author:** ![igge](https://b-cdn.sourceruns.org/letter_avatar_proxy/v4/letter/i/3d9bf3/32.png) [@igge](https://forums.sourceruns.org/u/igge)\ **Post date:** [April 17, 2011, 2:10pm UTC](https://forums.sourceruns.org/t/portal-2-built-on-alien-swarm-engine/1781/15 "2011-04-17T14:10:21Z")
The progress will only get slower the longer it goes on. There’s no way it will be “booted” ahead of time. ~24 hours ago we were like 20 hours ahead of schedule, today only 9 hours. And right now, ~40 mins after your post it’s already 1 day 15h until release. ---
**Author:** ![Centaurium](https://b-cdn.sourceruns.org/user_avatar/forums.sourceruns.org/centaurium/32/206_2.png) [@Centaurium](https://forums.sourceruns.org/u/Centaurium)\ **Post date:** [April 18, 2011, 2:52pm UTC](https://forums.sourceruns.org/t/portal-2-built-on-alien-swarm-engine/1781/16 "2011-04-18T14:52:13Z")
And now it’s 5 hours. Still, can’t wait to play it tomorrow morning. ---
**Author:** ![TYPICAL](https://b-cdn.sourceruns.org/letter_avatar_proxy/v4/letter/t/dfb087/32.png) [@TYPICAL](https://forums.sourceruns.org/u/TYPICAL)\ **Post date:** [April 18, 2011, 5:15pm UTC](https://forums.sourceruns.org/t/portal-2-built-on-alien-swarm-engine/1781/17 "2011-04-18T17:15:08Z")
Mine says 15h. ??? ---
**Author:** ![igge](https://b-cdn.sourceruns.org/letter_avatar_proxy/v4/letter/i/3d9bf3/32.png) [@igge](https://forums.sourceruns.org/u/igge)\ **Post date:** [April 18, 2011, 5:25pm UTC](https://forums.sourceruns.org/t/portal-2-built-on-alien-swarm-engine/1781/18 "2011-04-18T17:25:34Z")
15h until the “planned” deadline. check [http://cpucount.zapto.org/](http://cpucount.zapto.org/) for current deadline. ---
**Author:** ![Centaurium](https://b-cdn.sourceruns.org/user_avatar/forums.sourceruns.org/centaurium/32/206_2.png) [@Centaurium](https://forums.sourceruns.org/u/Centaurium)\ **Post date:** [April 19, 2011, 12:21am UTC](https://forums.sourceruns.org/t/portal-2-built-on-alien-swarm-engine/1781/19 "2011-04-19T00:21:40Z")
No, I was talking about the gap. ---
**Author:** ![execut4ble](https://b-cdn.sourceruns.org/user_avatar/forums.sourceruns.org/execut4ble/32/14_2.png) [@execut4ble](https://forums.sourceruns.org/u/execut4ble)\ **Post date:** [April 19, 2011, 6:52am UTC](https://forums.sourceruns.org/t/portal-2-built-on-alien-swarm-engine/1781/20 "2011-04-19T06:52:02Z")
PORTAL 2 IS OUT! :d CooL, go test the glitches nao. [Next page](https://forums.sourceruns.org/t/portal-2-built-on-alien-swarm-engine/1781.md?page=2)