TheXTech 1.7.4.1

2D-platformer game engine

filecart Android Updated Oct 18, 2026
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14this week
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Screenshots

About TheXTech

This is a game engine for platforming games. This is a complete and extended port of source code of the SMBX 1.3 game engine originally writtein in MS Visual Basic 6, and its direct unofficial continuation after development of original halted in the 2011th year. This engine preserves full compatibility with levels and episodes made for the original SMBX game, including its repacks. And it's allowed to create brand-new Levels, Episodes, and content packs. Unlike the original SMBX game that depends on Windows and x86, TheXTech can work on many operating systems (including Linux distros, macOS, xBSD, Android, Haiku, etc.) and processor architectures (including x86_64, ARM, PowerPC, MIPS, etc.).

**NOTE:** This is a runtime engine only. It requires game packages to be downloaded and unpacked properly. Please follow this instruction in order to get any game work:
[link removed]

License: GPL-3.0-or-later
Release info Update on Oct 18, 2026
Release notes When this update was supposed to be a small hotfix that fixes two small but annoying bugs, it also introduces the ability to use several graphics without cropping to original sizes. For example, BGO, some effects, terrain cells at the world map, scenery objects, and level points, now can have any size as big as you want. This only will work for levels and episodes are made for TheXTech. When playing episodes saved with old formats, they will have exactly same limits as before this update. However, objects of custom ranges will be expandable with no matter of the level or episode format.

Showcases
World map
Before

After

Scr_2026-10-17_20-51-37.webm

Levels
Before

After

Demo
A small demo episode that shows the work of new graphics behaviour: Large Objects Test.zip

Full changelog for 1.7.4.1

New features:

Behaviour changes
• Custom asset packs: effect dimensions are now loaded from the asset pack graphics. This fixes the appearance of player death effects in several asset packs. (@ds-sloth)
• Episodes targeting TheXTech: world map tile and scene dimensions are now loaded from the asset pack / episode graphics. (@ds-sloth)
• Episodes targeting TheXTech: BGO dimensions are now loaded from the asset pack / episode graphics. (@ds-sloth)
• Custom range (level-33 and above): world map level dimensions are now loaded from the asset pack / episode graphics. (@ds-sloth)

TheXTech bugfixes
• Fix TheXTech 1.3.7.1 bug where a stack of static NPCs would only partially despawn, causing the upper NPCs to fall (@ds-sloth, thanks to @Liebning for the report)
• Fix TheXTech 1.3.7.3 bug where level music would not play on a level without a player start point, where the player starts at a warp in Section 0 (@ds-sloth, thanks to @Wohlstand for the report)

Known issues
• Audio may be choppy on Old 3DS.
• Texture load stutter is present on Wii.
• The screen may slightly judder during section resizes on 3DS and Wii.
• On 3DS, background texture may start to flashing…
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