This game was written over a few weeks in the beginning of 2019, largely based on the Trap Runner engine. It has a medieval setting, where you are playing the celtic knight Eric on his task to save the kingdom from an evil force. One important modification from the Trap Runner engine is that the hero uses a short-range missile, also known as magical strike, to kill his enemies. It takes a short time before the magical strike is effective and it only works in his near vicinity, so you need some good timing to hit.

Celtic Heart was started as a small internal project to test some new techniques, so it is neither as polished as Trap Runner nor will there ever be a physical release of it. As a consequence the gameplay is a little bit underdeveloped.

• Programming: Frank Wille
• Original concept, graphics, music, level design: Gerrit Wille