Yes, this assumes truly solo dev, already having a PC, etc. but it can be done cheap.
Aseprite: £17.75
Blender: Free
Affinity: Free
DaVinci Resolve: Free
RPG Maker MZ: £66.99
Unity: Free if making less than $200,000 USD
Godot: Free
Steam listing fee: £73.31
That's a very low barrier to entry.
