- Forgetting to include a windowed mode.
- Making me sign into gamespy or games for windows live.
- Making cutscenes I can't skip.
- Making intro movies I can't skip.
- Packaging DRM with the steam version. Steam is already DRM.
- Hiring famous voice actors to do the voice acting in their game when they could have hired 200 pretty good but unknown voice actors for the same price and not have everyone sound the same (looking at you bethesda).
- Not including subtitles.
- Not including separate volume sliders for voices, music, etc.
- Gunfire that sounds like an artillery duel at point blank range instead of gunfire.
- If a vehicle is small enough to drive somewhere, let me do it. Far Cry let me drive a jeep up inside of a bunker and shoot everyone, it was probably my favorite part of the whole game.
- If you are making a strategy game, don't zoom in the screen super close. Let me zoom out if I want, even it's it's really far away. I want to be able to see a lot of the field.
- If you're going to do a console port, at least change the GUI a little bit. I don't want to have to bring up a stupid weapon wheel every time to select a weapon, or deal with TV sized letters. I don't set 5 feet away from my computer, I can read the letters just fine.
- Don't include some gimmicky motion control just because the Wii has motion sensors. Your implementation sucks.
- Include an option to unlock everything. I have the time to unlock things and I don't mind it, but some people don't have the time to play through your game three times to try out the cool stuff.
- Include difficulty options, not just one difficulty. Don't label your difficulties "Normal, Hard, Very Hard" either. That's handicapped, start at easy and go up.
- Stop making me play an annoying minigame to do something. Let me skip it if I'm not good at it, or if I think it's dumb, or both. For example, I was pretty good at Oblivion's lockpicking game but I thought it was handicapped. You get unlimited time to pick a lock as long as you do it when no one sees you. Deus Ex did it right, you sit and wait and if your ability sucks it takes you longer and you use more picks. This would be a good mechanic in Oblivion, a guard could sneak up on you while you're picking the lock.
- Include quicksave.
- Let me change the mouse sensitivity.
- Make sure your DLC site is easy to find and doesn't suck. I also shouldn't have to buy MagicBucks to buy your DLC, and if your DLC is 8 MagicBucks you shouldn't only sell your MagicBucks in increments of 10. If I have 2 MagicBucks sitting around in my account I better be getting interest on my MagicBucks because that's what it'd normally be doing if I didn't give it to you.
- Friendcodes are terrible. Let people pick out phonetic names.