Sam is the next to committ to Llandudno after yesterday's arrivals McHarrie, Seager, Carey and Gerwyn Jones were all confirmed.
Downey is a midfield player who worked alongside new manager Matty Jones at Denbigh Town, and has had other experience at clubs such as Rhyl, North Ferriby United and Spalding United.
Matty Jones says Sam fits perfectly into the squad he is trying to build here at Llandudno and is looking forward to working with him once again.
"Sam is another lad that I've known and worked with for a couple of seasons and I was very keen to bring him here as part of my plans." Said Matty
"He fits perfectly with the profile of player we are looking for and I'm looking forward to seeing him develop with this new group."
Sam is also delighted to have made the move to Llandudno and to work with Matty once again.
"I'm delighted to be joining Llandudno and to be linking up once again with Matty. The opportunity to join such a great club was extremely appealing and I can't wait now to get going." said Sam.
Updated 13:52 - 15 May 2019 by Geraint Roberts