What is the Optimal Screen Resolution?

You can't scale the game window like a vlc video so you have to use a resolution which fits to many unknown gamer screens. Too large isn't good for small screens and too little isn't good for hires screens. If you use fullscreen mode it may work. So that's why 1280 is "in the middle". Afterall the animations and pictures increase without necessity and make it slow.

My fault. I wrote about the editor to show how a resolution makes the size of fonts or buttons. I maybe should use another example. So if the screen has a 1920 resolution all program stuff or windows folders or menues are very little. If you start a game of 800 x 600 on this screen it is only the half size of the screen. If the screen is 800 x 600 the game fits more ore less the whole place. Of course I'm talking about the final game window.

Hm, there are three cases for resolution: auto, desktop, game. None of them is activated.
I insert a new line, but resizable = yes doesn't work. The game window size stays fixed.

resizable works only in window mode and should make it resizable like other windows. 

resizeable = yes is for window mode only. It allows the end user to drag & resize the game like you would resize any other application that isn't maximized. You know, by left clicking & dragging from an edge or corner of an application window.

The most important thing here is that the most common screen resolution is 1920x1080 & any 16:9 monitor should scale the game perfectly. 1280x720, 1366x768, 1600x900 & 1920x1080. There are a couple of higher resolutions than that like 4k, which is essentially double 1920x1080, but it requires the end user to mess around to get it to display correctly.

Anyway, my point remains... YOUR screen resolution is irrelevant. I recommend using 1920x1080 for all modern point & click games or 1280x720 & below for retro pixelart point & click games.

Quick note: if you want to create a pixelart game with low resolution that scales up ok on 16:9 screens then you could use 480x240, 640x360 or 1280x720.

Thank you. Yes the game is window mode (full screen doesn't make any sense), but to drag on a corner doesn't work.

YOUR screen resolution is irrelevant.

OK, but if there is the option "fullscreen" for all gamers I use a game resolution which I can handle well on my own screen. That means: the game is small and will be stretched later on higher resolutions to fullscreen. I only have to look at a straight factor to make four pixels from one.

Thank you. Yes the game is window mode (full screen doesn't make any sense), but to drag on a corner doesn't work.

The "Resizeable = Yes" line is needed in the config.ini for that to work.

Quick question: when you launch the game from the editor does it open up fullscreen by default or window mode? If you have fullscreen enabled then it will ignore whatever resolution size you specifiy in the config.ini & scale up to game as far as I remember. Also, I don't resizeable will work either. I recommend setting it in the editor options so the game will open up in window mode because you can toggle that on/off via the config.ini & test out scaling window to different resolution sizes to see what the game will look like at those sizes.

#22:
I insert a new line, but RESIZABLE = yes doesn't work. The game window size stays fixed.

I created the final game clicking the windows mode (in R4.2.5 it's still possible, in R5 not). Because my test game is only 800 x 600 it looks bad at fullscreen 1280 x 1024 px...
So the game starts in windows mode by default always.

I believe you are missing the letter E. Don't ask me why it ended being spelled as Resizeable instead of Resizable, as I've no bloody idea!

sorry, my fault... 

sorry, my fault... 

RESIZEABLE  

You did spell it correctly though.

Think whoever created the option for the config.ini made an accidental typo.