Deltarune's Tenna: From Decade-Old 3D Concept to Game Character

06/29/2025

The intriguing character, Tenna, a CRT-headed antagonist from Deltarune's third chapter, had its conceptual roots nearly a decade ago, as disclosed by game creator Toby Fox. This fascinating revelation highlights the long incubation period some creative ideas undergo before manifesting in their final interactive form, and underscores the intricate processes involved in bringing digital worlds to fruition.

Toby Fox recently took to social media to share the surprising origins of Tenna, a character now familiar to players of Deltarune's Chapter 3. According to Fox's post, the initial concept for this distinct personality emerged as early as 2016. At that time, Fox harbored ambitions of bringing Tenna to life through 3D animation, even going so far as to acquire a Kinect sensor to experiment with rotoscoping the character's movements. He also considered having Tenna perform MikuMikuDance (MMD) routines, a peculiar and humorous idea given the program's association with viral anime animations.

However, these early forays into 3D self-production were ultimately set aside. Recognizing the immense effort and specialized skills required, Fox strategically decided to collaborate with other talented individuals to achieve his vision for Tenna. This collaborative approach allowed him to overcome the technical hurdles he faced, demonstrating a practical and efficient mindset in independent game development. The finalized character in Deltarune is a testament to this shared effort, with Fox crediting Gigi for design refinement, Clairevoire for cleaning up pixel art, Everdraed for intro editing, SmallBu for final intro poses, and Audrey for typography.

This insight into the development process offers a valuable glimpse into the pragmatism often necessary within indie game creation. It exemplifies how creators might shift their approaches, opting for collaboration over solo mastery when faced with complex technical requirements, ensuring that ambitious projects remain feasible. Such decisions are crucial for progress, as dedicating excessive time to mastering every facet of game development can hinder overall production timelines.

The humorous aspect of Fox's initial inclination towards MMD dances for Tenna is particularly noteworthy, echoing the quirky and unexpected charm that defines the Undertale and Deltarune universes. The thought of a character from these games engaging in dances typically associated with virtual pop stars adds another layer of delightful eccentricity. This unique blend of humor and unconventional design is a hallmark of Fox’s artistic style, which has resonated deeply with a broad audience.

The game itself has garnered significant success. Following the recent launch of Chapters 3 and 4, Deltarune ascended to the top of Steam's best-seller charts. Its consistent critical acclaim is further evident in its impressive 98% positive review score from over 45,000 player reviews. As noted by Ana Diaz, Deltarune consistently surprises players, with its gameplay often veering into unexpected directions, transforming familiar RPG mechanics into uniquely inventive scenarios. This unpredictable and imaginative design philosophy continues to captivate players, establishing Deltarune as a distinctive and essential experience for enthusiasts of role-playing games.