Quote from: Tekrommus on September 26, 2015, 10:39:31 PM

How to create a Altcoin?

1) I have forked all the files in the source code on https://github.com/bitcoin/bitcoin

2) Then I have changed the following in the entire source code. I used a search and replace tool.
2a) bitcoin to examplecoin
2b) BITCOIN to EXAMPLECOIN
2c) Bitcoin to Examplecoin
2d) BitCoin to ExampleCoin
2e) btc to eec
2f) BTC to EEC
2g) Btc to Eec
2h) BtC to EeC

3) Then I have changed all of the files names from bitcoinfile.xx to examplefile.xx.

Can I just upload the files onto Github.com? Is there anything else I have to do before hand?

No. You've only scratched the surface. If you want to learn more about creating altcoins, this post https://bitcointalk.org/index.php?topic=1060540.0 has a number of useful links.