Or maybe one in the making?

Have a close look at your pict. Not a single letter is the same. Now why do you think this is a font?

Patience my friend, patience.

Can you explain why you carefully avoid telling what font you are talking about?

There is no such thing as a Relentless Energy Drink font. There may, however be a font that Relentless Energy Drink (whatever that may be) uses.

The original digital version is the ATDelphian Open.

I, I. Not a font.

As long as you carefully avoid to tell what font you are talking about I will carefully avoid to give you an answer.

Surprising isn't it, there are still people that actually write

... downloaded in paint ...
Doesn't that explain it? Try

... downloaded in paint ... Now how did you manage to do that?

No.

Hopla, Chinacat.

Frank Knows? Lovesick? BN Manson Nights?

Ripped effect? What ripped effect? http://www.dafont.com/green-energy.font?text=MONSTER

@toto, my experience is that there is - far too - often a big difference between what is considered similar. So I tried to find out what where the specific properties valis was looking for. Past tense as valis never came back.