A minimalistic digital logic simulator · By Sebastian Lague
So, I've downloaded the game and ran it. But when I started a new save I only had a Nand gate to start
you can make every other gate using just nand gates
Don't you at least need NOT and AND gate first ? (starting from the first video, but I can't do the basic gate :/)
NOT and AND can be built using NAND gates, and therefore all logic gates can be built using NAND gates. Just google "all logic gates using NAND" to see how to do it.