This app was mentioned in 9 comments, with an average of 3.56 upvotes
Playing Half-Life 1 in VR has been my go-to since it was released. Started to play a little less frequently because I'm going to be sad when it's over. I've had good results using the keyboard setup on my cheap Bluetooth controller. The Android app is free, but you need a copy of the files from HL1 (not the newer HL1:Source version). If you don't have a copy, waiting for a Steam sale might be a bit of a bummer, but it tends to drop the price from $10 to $2.50.
Edited to add: Link to Xash3D VR on the play store
>Prepare to get so ill!!!!
Haha, I had the same experience with Quake. I did get a little used to it, but the first time was about 10, maybe 15 minutes of game play and then an hour of lying down feeling sick in a dark room.
So, definitely also look into getting Half Life 1 set up to run with Xash3D VR!
It needs a lot of buttons and some of the gameplay is a bit dated, but I love the environments and atmosphere.
I don't think VRidge supports non-VR games yet.
Try Xash3D VR. You'll need a controller and the HUD isn't really usable, but I've played almost the entire way through with it.
https://play.google.com/store/apps/details?id=in.celest.xash3dVR.hl
note that the current version has an improper configuration, you have to run it with some launch option like '-vr' or 'vrmode 1' or something like that
Mostly Half Life 1 and Quake 1 in VR. But I've also started to think about getting into emulation. There are a few old JRPGs I always wanted to play but never get around to on my computer.
My Nexus 6 fits in the standard Cardboard V2 without modification, and in the BoboVR Z3 by moving two of the rubber pads so they aren't stacked.
The standard V2 is cheap and has a working capacitive button, but clips a lot of the screen so that the visual quality and FOV isn't great. Doesn't attempt to block lots of areas of light ingress, but is also very lightweight (comfort!). The Knox V2 and an elastic strap runs less than $10. I have not tried adding a strap to the Knox V2 because I use it for quick looks and travel. Looks like they also have a black V2 for a dollar more at the moment. The uncoated Cardboard does absorb oil pretty quick...
The BoboVR Z3 is the only viewer I know for sure allows the entire screen to be viewed, which is great. It has a focus adjustment so I don't need to wear glasses. Large lenses give a decent FOV, noticeably larger than the Cardboard V2, but also because the whole screen is used the sharpness is better as well. Sub pixels are still visible, but it's not normally too distracting. Price is a bit under $20, but it took over a month to ship.
The QR code that comes with it is very poor, I might get around to uploading mine, but if your IPD isn't 65mm, you'll want to make your own anyway.
The comfort of the Z3 was terrible out of the box. This varies a lot person to person, but for me the nose cut-out was very bad and sat on the bridge of my nose painfully. After 30 minutes of scraping with and x-acto, it sat on my cheeks slightly painfully. After strapping about 80g of liquid to the back and adding some padding underneath the built in foam, the comfort is now OK for 30 minutes at a time. Finding a better counterweight might help further. I added black tape to some areas to prevent light leak through the white plastic. Also added scuffed black tape to the eye divider to better cover the dividing line in many apps, and to cut down on reflections towards the inside of each eye's FOV.
Initially the phone didn't fit on the top left corner (the top & bottom phone bezels aren't symmetric), so I tediously scraped out that corner. Later, I realized there are four rubber pads, two sets of two stacks. Moving two of the pads to the side so there is only one level of pads made the phone fit fine, with better screen centering.
The BoboVR Z3 doesn't have any kind of capacitive button, which is irritating. All of Google's Cardboard apps use the button, and most movie playing apps have time-based gaze buttons, but clicking is way less irritating.
A USB On-the-Go adapter plus a USB mouse is the cheapest fix. The Terios T3+ is a Bluetooth gamepad with a mouse mode, which would be a little nicer. I have a previous variant of that controller ("Red Samurai") and for a super cheap controller it is good. Has a keyboard mode of top of the standard gamepad mode, which can be handy.
I am pretty curious about the successor to the Z3, the BoboVR Z4 (aka Virtoba X5). The FOV could be much wider, and the comfort is reported to be improved. It also has a (flaky) capacitive button. The standard, non-mini model also has built in headphones, which seems good for comfort as well from a cabling and weight-balance perspective.
I've heard it definitely accommodates screens larger than 5.5", but I don't know if it would need modification to physically accommodate the Nexus 6. Trimming the little side restraints doesn't bother me any, but if the full screen wasn't visible it'd be annoying. VR really needs way more pixels to be decent, so losing any is rough. The screen mask looks like a thin piece of foam, but I can't tell for sure and don't know what visibility restrictions might be underneath. If the full screen can be viewed, the FOV should be much wider.
Anyway, I've had a lot of fun with Cardboard for the amount spent. Half-Life 1 runs great using Xash3D VR, Quake 1 runs great with QVR. I take and view Cardboard Camera pictures fairly regularly. I've watched chill movies with VRTV lying down when I'm sick (Blade Runner, Solaris). There are occasional spherical videos that are interesting despite the low resolution (spherical video is pretty disappointing). I'm obviously a fan, but since you can get good feel for the capabilities of the platform for $10, why not?
We hard a thread a year ago but I don’t think there’s been anything new since.
Xash3D VR - requires Half Life 1 flies from a PC, but with the Steam sale those are like one dollar.
Hardcode neat 3rd person shooter
QVR A Quake engine port, can run the Quake demo files, or buy the game (steam sale makes this v cheap)
DVR Doom.
I'm a big fan of Xash3D VR - it's a Half Life 1 engine. You'll need to own Half Life 1 and getting the controller mapped takes a little time, and the distortion isn't perfect, but HL1 is a pretty great game, and quite long. Some of the FPS mechanics haven't aged super well, but it's definitely my personal favorite. Just the realistic/sci-fi environments are very enjoyable for me. Kinda hard, feel free to abuse quick save.
QVR is a Quake 1 engine, and can easily download the shareware demo map, so it's a bit easier to set up. I think there's also a separate download for HD textures, which improve things a bit. Never appealed to me as much as Half Life the level design is a lot weirder, but the colors and aesthetic are dull and there's no story to speak of. Gameplay holds up well, but circle-strafing and jumping around will probably make you sick.
Actually, this is a good place to note that using a controller with non-VR games with fast motion will likely make you feel sick. When you first start to feel sick, immediately stop playing. If you don't, you can make the sickness start faster and feel worse. Short sessions are best and many people get used to it after a while. Some people never do, however. The first time I played QVR, I played for about 10 minutes, felt a little sick and kept going for another couple. Then I stopped and felt sick for an hour.
Wrong Voyage and Wrong Level are short exploration/puzzle games and I found them fun and atmospheric.
You don't need a controller, but Gravity Pull does have controller support, and is a fun short puzzle game.
Hardcode is a third person shooter that's worth a try IMO.