Cross-Platform Pixel Art Dungeon Crawler

I'm seeking a skilled game developer to help create a card-based dungeon crawler game with a pixel art style.

Key Features:
- Cross-platform availability on PC and Mobile
- Registration process requiring name, date of birth, and email
- Game modes: Tutorial, Solo Play, Private Lobby, Multiplayer Lobby
- 54 main dungeon cards and 5 secret bosses
- Achievement system
- I have some audio assets and visual assets I would like to use
- there are 4 factions in this set. I plan to add 4 faction expansion packs as more games are developed as I have big plans

Ideal Skills and Experience:
- Experience in game development, especially for cross-platform
- Strong background in pixel art
- Familiarity with card-based game mechanics
- Ability to implement registration processes and various game modes

Please provide samples of similar work.