Reading your comment I remembered the guy who implemented 3D doom in Excel https://www.gamedeveloper.com/design/3d-engine-entirely-made-of-ms-excel-formulae-en

Reading your comment I remembered the guy who implemented 3D doom in Excel https://www.gamedeveloper.com/design/3d-engine-entirely-made-of-ms-excel-formulae-enjoy-this-doom-xls-file- https://www.gamedeveloper.com/design/3d-engine-entirely-made...