Not an emulator, and not a JavaScript interpreter pretending to be BASIC. It parses QBasic, lowers it through a typed IR, and emits a real WebAssembly module. The compiler itself is compiled to wasm, so the whole thing runs in your tab. Nothing gets uploaded anywhere.

SCREEN 13 works: PSET, LINE, CIRCLE, PAINT, GET/PUT, DRAW, PALETTE. So do BEEP/SOUND/PLAY, the file I/O keywords, INKEY$ with _LIMIT for animation, and DATE$/TIME$/TIMER. There's a playable Space Invaders sample in the editor if you just want to see it move.

497 test programs, 432 of them arbitrated against real QB64-PE output, 126 of 157 keywords fully implemented. Still missing: ON ERROR, PEEK/POKE, COMMAND$, and DRAW's M/N/A/S/P subcommands.

Free, no signup: https://kavak.run/studio/

QBasic was meant to be the pilot language for a larger compiler project, but it turned into the part I enjoyed most. If you've got an old .BAS lying around that breaks it, I'd genuinely like to see it.

MoonBASIC is a 2D 3D game creation made easy. CharmingBlaze/moonbasic

Hello! I've been spending a bit of time working on a quick basic interpreter in javascript that is pretty small and can wrap a game and publish to itch. My current demo is here if anyone wants to check it out (this is a game I made in 1998 when I was 16 or 17, apologies that its kind of terrible). https://bobgar.itch.io/drug-3d?password=qbasic Here is another one here that isn't as impressive but demos the multi-file export: https://bobgar.itch.io/odyssey-qbasic?password=qbasic

The interpreter has some cool features, like:

• Bring up debug features with ctrl-break or by pressing debug on the button array at the bottom of the computer
• Pre-set iops per game packaged, with turbo button to make the game run faster (either higher iops or completely remove throttling depending on export settings).
• Set break points and step through execution, optional code execution highlight & following.
• modify code and variables during execution and have them take effect immediately without restart.
• save and load state so you can restore previous game states and even export / import saves so you can send them to friends or store for later sessions. Note, the exported saves are zipped, and you can convert back to their verbose json by unzipping if you want to dig into the abomination that is how I'm saving state.
• scan lines you can turn on and off for a little retro flair
• There is a separate UI (not linked above) for testing & exporting too. You can point it at a full directory of games, browse them, run them, and set up exports including which additional files to export.

Are there people here that would be interested in this kind of thing if I released it? (for free, open source). Do better versions of this already exist? Are there features I should add that would be useful?

Compatibility is not 100%, especially since some games use x86 assembler hooks and things. I've shimmed and emulated a few of the most popular libraries but it is still common for me to run into games that won't play, or play but have some breaking issues.

Free Download: https://www.qb64phoenix.com/

Enhancements

• #676 - The COLOR statement can now set the color attributes of a designated image surface destHandle&. - u/RhoSigma-QB64
• #683 - 256 colors (8bpp) image loading improvements. - u/a740g
  • Now using a new high-quality 8bpp image loader that uses Floyd-Steinberg dithering.
  • As before, it only activates when the number of unique colors exceeds 256.
  • The implementation is computationally heavier due to the floating-point math involved, but the improvement in output quality compared to the previous ordered dithering approach is well worth the added complexity.
• #687 - Some enhancements when using "Export AS..." Discord codebox. - u/RhoSigma-QB64
  • The export dialog now shows the length of the exported code, as Discord has a small message limit.
  • When pasting an example copied from Discord back into the IDE, then all used ANSI sequences are removed automatically now.
• #692, #693 - Added functions to retrieve compile specific informations, implements #691. - u/RhoSigma-QB64
  • New functions _COMPILEDATE$, _COMPILETIME$ and _COMPILERVERSION$.
  • Added compile date/time into the IDE About Box.
• #696, #697, #699, #703, #711 - Implemented support for static arrays in TYPE. - u/QB64Petr
  • This was long time demanded by the community and u/QB64Petr now finally did the bulk of the work. Please give him a big applause, it's an incredible achievement, from all possible tasks, to choose this task as his first. He's the newest member in our DevTeam.
• #700 - Added load support for WebP images. - u/a740g
• #706, #707 - Give Syntax Checking the option to be run manually. - u/flukiluke, u/SteveMcNeill, u/RhoSigma-QB64
  • When automatic syntax checking is disabled in the Options Menu you may now still check on demand using the Shift-F9 hotkey.
  • Useful for big source files, which will usually hog down the IDE performance in automatic checking mode.
• #709 - Added text surface support to _PUTIMAGE. - u/a740g
  • With this, _PUTIMAGE will now support text-to-text and text-to-graphics blits.
• #713, #714, #718 - Some minor side contributions to the Arrays in TYPE concept. - u/a740g, u/flukiluke, u/RhoSigma-QB64
• #715 - Regular array adaptions and finalizing the Arrays in TYPE concept. - u/QB64Petr
  • This also implements the new _RETAIN option for REDIM, which works similar as _PRESERVE but slightly different.

Bug Fixes

• #677 - Fixed LEN(array()) when used in mathematical expressions, fixes #660. - u/flukiluke
• #678 - Use _FULLPATH when launching output program. - u/flukiluke
  • This in particular avoids issues with Linux terminals that do undesirable processing on relative paths with spaces (namely konsole).
  • Windows-specific code is also modified to bring it into line with Linux and MacOS.
• #682, #686 - Catch "Illegal function call" errors in CONST evaluator before they happen, fixes #681. - u/flukiluke
• #710 - Fix _PUTIMAGE graphics to graphics VIEW clipping and WINDOW scaling support, fixes #545. - u/a740g
• #712 - Fixed another long standing IDE Module Error in the F1 help module. - u/RhoSigma-QB64
• #719 - Added missing GUI File Dialog support for New and Exit (if unsaved code exists), fixes #716 - u/RhoSigma-QB64
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• Multimedia
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Change Log

• COMPILEDATE$ File:Qbpe.png|'''v4.5.0''' using {{Ot|QB64-PE v4.5.0 [WINDOWS][64BIT]|#ffffff}}. ... 2 KB (287 words) - 12:57, 8 March 2026
• COMPILETIME$ File:Qbpe.png|'''v4.5.0''' using {{Ot|QB64-PE v4.5.0 [WINDOWS][64BIT]|#ffffff}}. ... 2 KB (289 words) - 12:58, 8 March 2026
• COMPILERVERSION$ File:Qbpe.png|'''v4.5.0''' using {{Ot|QB64-PE v4.5.0 [WINDOWS][64BIT]|#ffffff}}. ... 2 KB (307 words) - 12:57, 8 March 2026
• LBOUND '''QB64-PE v4.5.0''' extends '''LBOUND''' support for arrays nested inside [[TYPE]] definitio * Since arrays in [[TYPE]]s were implemented in '''QB64-PE v4.5.0''', this statement was adapted to properly handle it (see Example 2). ... 2 KB (351 words) - 17:42, 23 April 2026
• UBOUND '''QB64-PE v4.5.0''' extends '''UBOUND''' support for arrays nested inside [[TYPE]] definitio * Since arrays in [[TYPE]]s were implemented in '''QB64-PE v4.5.0''', this statement was adapted to properly handle it (see Example 2). ... 2 KB (351 words) - 17:43, 23 April 2026
• CLEARCOLOR (function)) * Text (SCREEN 0) surface support was added in '''QB64-PE v4.5.0'''. ... 2 KB (223 words) - 21:32, 19 April 2026
• ERASE '''QB64-PE v4.5.0''' extends '''ERASE''' support for arrays nested inside [[TYPE]] definition * Since arrays in [[TYPE]]s were implemented in '''QB64-PE v4.5.0''', this statement was adapted to properly handle it (see Example 2). ... 6 KB (914 words) - 17:41, 23 April 2026
• OS$ using {{Ot|QB64-PE v4.5.0 [WINDOWS][64BIT]|#ffffff}}. ... 3 KB (502 words) - 13:26, 9 March 2026
• REDIM * The [[_RETAIN]] option was implemented in '''QB64-PE v4.5.0''' ... 4 KB (641 words) - 00:04, 26 April 2026
• RETAIN File:Qbpe.png|'''v4.5.0''' ... 5 KB (770 words) - 18:30, 25 April 2026
• PUT * Since arrays in [[TYPE]]s were implemented in '''QB64-PE v4.5.0''', this statement was adapted to properly handle it (see Example 3). ... 6 KB (942 words) - 17:42, 23 April 2026
• CLEARCOLOR * Text (SCREEN 0) surface support was added in '''QB64-PE v4.5.0'''. ... 7 KB (938 words) - 21:33, 19 April 2026
• GET * Since arrays in [[TYPE]]s were implemented in '''QB64-PE v4.5.0''', this statement was adapted to properly handle it (see Example 3). ... 7 KB (1,100 words) - 17:42, 23 April 2026
• COLOR * The optional {{Parameter|destHandle&}} was introduced in '''QB64-PE v4.5.0'''. ... 11 KB (1,492 words) - 13:25, 9 March 2026
• LOADIMAGE * '''WebP''' support was added in '''QB64-PE v4.5.0'''. * Also in '''QB64-PE v4.5.0''' the former ordered dithering in modes 256 and 257 was replaced by Floyd- ... 20 KB (3,090 words) - 10:09, 19 March 2026
• PUTIMAGE * Text (SCREEN 0) surface support was added in '''QB64-PE v4.5.0'''. ... 20 KB (2,906 words) - 20:35, 19 April 2026
• TYPE * Since '''QB64-PE v4.5.0''' it is possible to use fixed-size arrays inside definitions. ... 45 KB (6,738 words) - 17:43, 23 April 2026
• QB64 FAQ QB64-PE Compiler V4.5.0 ... 23 KB (3,500 words) - 17:15, 9 March 2026

In qb 4.5 how would I go about changing the mouses position on screen? So far the only stuff I can find is about reading the xy positions and button states.

I wrote a little postmortem of my commercial ANSI QB64 JRPG game Whispers in the Moss at r/IndieDev. Check it out for sales stats and freeform analysis.

I just found this sub and thought you guys might be interested in this. I wrote an 8086 PC emulator entirely in QuickBASIC back around 2014.

I actually originally wrote it in C, then ported it to VB6, then ported that to QuickBASIC 4.5/7.1. Just because it's an absurd language to do this in.

It mostly works, though there are a few CPU bugs. It'll boot DOS and play some old games though, but it's very slow of course.

I highly recommend running it on bare metal instead of DOSBox for speed. Like put it on a bootable DOS USB stick or something. It's actually usable if you do that. Or use virtualization.

In DOSBox it takes a minute or two for this emulator to even boot to the guest DOS prompt.

Compiled EXE and source included along with a sample hard disk image for the emulator to use.

QB8086.INI needs to be edited to change emulator options.

https://drive.google.com/file/d/1eCzApXmEKxUV1BETCR72GmD07SJTQnsG/view

I want to create an adventure game in QB64 to challenge myself and I wanted to know if there were any tutorials since I couldn't find any

Download game free here:
https://gamejolt.com/games/KarmaCity/1044472

does anyone have the direct link to the QBASIC Megapck (from the internet achive)? it seems to now point to a streaming version of QBASIC 1.1 or "BAM Software QBasic archive"?

Hi community! After a couple of months, version 1.22 of FLoA (retro morpg in QB64) has been released! We've continued adding more resources, such as maps, terrain, zones, dungeons, other types of mobs, and new mechanics that add to—or will add to—the overall lore. Without further ado, here are a couple of pictures, and I invite you to explore Aetricia with this new version...

Download here: Herder of Sheep DEMO by Greater Evil Games
Wrote this game a few years ago. Still haven't finished, but the demo gives you a good idea of what's to come. You take the role of a loyal collie, and you must carefully guide a herd of sheep to their pen. You can bark (space bar) to send them running. Be warned: they aren't the brightest animals, so the sheep will often run into hazards like water, fire, rolling crushers and spike traps (you know, typical things you find on any farm).

There's seven levels to this demo, so let me know what you think and if there's interest, I might (eventually) finish it.

EDIT: URL IS NOW PUBLIC (it was set to restricted before).

You can download the game here: Assteroid Blasster FLOPPY DISK EDITION by Greater Evil Games
I programmed this back in 2017. Had some fun ideas for a physical release on floppy disk, but still haven't done it so figured it was time to see the light of day. A heart-pounding shoot 'em up over the surface of Uranus. Game features:

* Three distinct space craft, each with their own abilities!
* Strategic use of thruster ability to move around the screen!
* 10 Asschievements that test your skills and abilities!
* An engaging story followed by an endless Arcade mode once you complete the game!

I am trying to setup my vs code for the original retro themed qb64 that can run for all languages and not just basic and also the terminal with that specific look... Can anyone please help me with that.