A downloadable game

for Commodore 16/Plus4

Sir Knight is your noble knight who has been asked by King Arthur to rescue the beautiful Princess Ethel imprisoned in Black Skull Castle.

The fortification around the castle comprises of archers and cannons firing menacing fireballs. Other obstacles impeding your progress are pits, portcullis, and a grease-covered moving bridge spanning a large pit. All of these obstacles need to be conquered before a trail of fire ignites a store of TNT under the Princess' dungeon.

Original game written by Chris Robbins for Tynesoft Computer Software 

Redux credits

Code and redesign: C64_Mark

Music, sound fx and font: dmx87

Testing: jolie jones, i_a_n, Luca (Plus4 World)

New features

This redux version now fits into 16K and will run on a stock Commodore 16 (the original was 32K). It also includes the following new features:

  • Screen flicker/raster fix
  • All new music and sfx
  • Overlapping soft sprites
  • Number of levels extended from 14 to 30
  • Level names and numbers
  • Checkpoint at level 16
  • New, extended hi score table and screen
  • NTSC fixed
  • Cheat modes included
  • Joystick control and choice of keys
  • New graphics and end screen
  • Reason for death shown
  • Extra life every 20,000 points


Joystick in Port 2 or keys (ZX + Return or KL + CBM Key)

Esc (tilde on YAPE) - rage quit

Play on real hardware or YAPE

Rated 5.0 out of 5 stars
(3 total ratings)
Tagsc16, cbm, commodore, commodore-16, commodore-plus4, plus4, Retro


SirKnightC16.prg 11 kB


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Nice but very hard game! Our German-language review can be found in our recorded livestream starting at 00:20:43. Automatic subtitles should be available soon (switch on, if necessary). Subscription to our YouTube or Twitch channel is welcome. 🙂



I see it got the better of you - once you master the first level, it gets easier :)

I've given you a follow on Twitch :)

Tremendously addictive game! Recommended

Nice game! Will boot this up on the real hardware sometime too. Any chance for a C64 version? If you have one cooking would like to feature it on our coverdisk for ZZAP! 64 (and launch on itch simultaneously).


Possibly. I'm going back to a different C64 game first - a suped-up C64 version of Hercules Redux I released on C16/Plus4 last year.

I may port this over after that... although my backlog is long :D

Okay. I want to cover this (our news section, screenshots, concept etc.) and a demo or full game on one of our cover disks (and release on itch simultaneously). Keep going and thanks for the games that are providing! jazzcat64@gmail.com

Nice game !

Nice - good to see you mastering some strats already :)

If you wish you can publish my game play video here in your account.

very good

Thanks Marco

It looks and sounds great, but it is way too hard. Please adjust the gameplay difficulty  to become  more fun to play

Hi - thanks for playing. The original levels match the difficulty of the original, which I agree is quite challenging. But there is a 'strategy' to complete all levels. Most levels the strategy isn't too hard to pull off once you learn it. You can use the infinite lives cheat to practice.

My testers have both completed the game already without cheats.

An insanely difficult game!

Practice makes perfect ;)