CrimsonLand

KILL 'EM ALL! They Keep Coming! : Crimsonland for OS4

This is another game that many users will remember from the mid-2000s. There are
only a handful of casual games that can truly be called timeless classics, and
Crimsonland is undoubtedly one of them.

Some of us have been hoping to see Crimsonland on AmigaOS for a long time. There
was an attempt to port Violetland, which was "kind of" similar, but it never
matched Crimsonland in terms of speed, visuals, or the sheer amount of action.
For years I dreamed of disassembling the original game and rewriting it for
AmigaOS 4, but the amount of work required would have taken at least a year, so
the project was always postponed. And recently, I discovered I wasn't the only
one with that idea:

https://banteg.xyz/posts/crimsonland/

"Banteg" had been dreaming about the same thing, and only recently—with
the help of AI to speed up the reverse engineering process—he was finally
able to finish it. His website tells the whole story: debugging, disassembling,
decompiling, and reconstructing the original game. In the end, he produced a
version that behaves 99% identically to the original. However, his rewrite is
written in Python using Raylib, which isn't suitable for AmigaOS 4. So I spent
the last three weeks porting it to C using SDL2 and OpenGL ES 2.0. Days and
nights later, I can finally say we now have a version that's 99% identical to
the original, with a few small extras such as fullscreen support (both from the
options menu and via Alt+Enter), a resizable window, VSync on/off, and a few
other convenience options.

Everything else is there: all 50 Quests, Rush and Survival modes, the hidden
minigames, hardcore difficulty after completing 40 levels, highscores,
configurable controls, two-player mode, perks, bonuses, every weapon, music, and
sound effects—it's all included. You also don't need to download the game
assets separately; the original developers gave Banteg permission to
redistribute them, so they're included with
this port.


As for performance, on my AmigaOne X5000 with a Radeon RX 560, I get around 260
FPS at 1920×1080 with VSync disabled. With VSync enabled, it naturally runs at a
stable 60 FPS.

You can see it in action here:

https://youtu.be/wXSqBP7Dd9Y

If you already know Crimsonland, then enjoy finally playing it on OS4. If you've
never played it before, give it a try. It's one of those timeless games that
never gets old. Like Plants vs. Zombies, Quake, or Unreal, it's simply one of
those timeless classics.

Have fun, and never say never!

(c) kas1e, 22/07/2026