Batomon PvP Mod

Batomon PvP Mod turns Batomon Showdown — a single-player auto-battler on Steam (built in Godot) — into a private multiplayer game you can play against friends. The catch: the base game has no networking code at all, so I added multiplayer entirely from the outside.

Instead of hacking netcode into the engine, the mod synchronises matches through a file-exchange state machine: clients read and write shared state, and a state machine coordinates the lobby and battles. It ships in two flavours with identical logic — an online Friend Versus on Supabase and an offline LAN Versus on a custom C# server — packaged by a PowerShell pipeline that handles the encrypted `.pck` (AES key recovery) and builds self-extracting installers. It's a shipped, actively-used mod (v4.3). Screenshots and the download are on itch.io.

Batomon PvP Mod pretvara Batomon Showdown — auto-battler za jednog igrača na Steamu (izrađen u Godotu) — u privatnu multiplayer igru protiv prijatelja. Kvaka: osnovna igra uopće nema mrežni kod, pa sam multiplayer dodao u potpunosti izvana.

Umjesto da ubacujem netcode u engine, mod sinkronizira mečeve kroz state machine sa razmjenom datoteka: klijenti čitaju i pišu zajedničko stanje, a state machine koordinira lobby i bitke. Dolazi u dvije izvedbe s istom logikom — online Friend Versus na Supabaseu i offline LAN Versus na vlastitom C# serveru — zapakiran PowerShell pipelineom koji obrađuje enkriptirani `.pck` (oporavak AES ključa) i gradi samoraspakirajuće instalere. Riječ je o objavljenom, aktivno korištenom modu (v4.3). Slike i preuzimanje su na itch.io.