Case study

Tower Toppler: reimplementing Nebulus

Tower Toppler reimplements the rotating-tower puzzle platformer Nebulus with newly drawn graphics. The author reports behavior close to the original after comparison, and the current game uses SDL for graphics and sound. A level editor supports new towers and missions.

Targets: Game
Category: Independent reconstruction cases
Relationship: Independent reconstruction project
Sources reviewed: 2026-11-09
Evidence class: C1 partial scope or analysis entry

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Evidence

Demo screenshot from the project's public documentation

Observed: Demo documented; the documentation covers part of the feature set.
Scope: Partial
Checked: 2026-11-09

How evidence classes are assigned

Requirements & limits

Prerequisites: SDL2, SDL2_mixer and zlib are listed for building the game.
Prerequisites: Rebuilding the data file additionally requires libpng, POV-Ray, GIMP, Blender and ImageMagick.
Limits: The author notes that some sounds could be added and bugs may remain.
License: No licence stated on the project page.

Cite

BibTeX

@misc{tower-toppler-case,
  title = {{Tower Toppler: reimplementing Nebulus}},
  howpublished = {\url{https://gitlab.com/roever/toppler}},
  url = {https://gitlab.com/roever/toppler},
  urldate = {2026-11-09},
  note = {Awesome REA entry: \url{https://awesomerea.org/resources/tower-toppler-case/}}
}

Plain text

Tower Toppler: reimplementing Nebulus. https://gitlab.com/roever/toppler (accessed 2026-11-09). Awesome REA entry: https://awesomerea.org/resources/tower-toppler-case/

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About this entry

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Primary sources

https://gitlab.com/roever/toppler/-/blob/c8bf02b0f8bf8875a454758227bf2bfc029487c3/README.md