Construction sites naturally harbor many dangers that expose workers to the risk of injury. These include possible falls, electric shocks, falling objects and the improper use of equipment. To prevent work-related injuries, safety authorities around the world prescribe standards to protect construction workers. The prescribed protective measures include the provision of certified protective equipment, the installation of guardrails and fall protection systems, the proper use of ladders and scaffolding and the implementation of comprehensive training programs. This paper will explore the concept of utilizing a 2.5D platformer serious game for construction safety training. In particular, the conception and implementation will apply design guidelines from game development to realize the relevant content in a promising form, both in terms of motivation and learning success.