Hey I'm actualy new but I wanted to share that I built a party game called "Copy Cat" and wanted to share it.
The idea: players picks a sound (2-6 sec); download it from the internet
right inside the app (Providers : MyInstants, Meme Soundboard, 101 Soundboards),
record it themselves, or grab any audio file from their phone. The
sound plays, and everybody else tries to imitate it , An on-device
"judge" grades each attempt on 4 axes: melody, rhythm, timbre and
energy. Everything runs over local Wi-Fi one phone hosts, up to 5
join, and no internet is needed at any point after downloading sounds.
Three game modes:
– Random Party: everyone's sounds get mixed and shuffled into
surprise rounds
– Player's Choice : each player picks a sound once; the others imitate
first, and the picker goes last
– Host Challenge: the host lines up sounds from their library and
everyone imitates them in order
Extras: full Arabic + English UI (built Arabic-first), dark/light
themes, a shop with 3D avatars, power-ups and coins.
A few technical bits other Flutter devs might find interesting:
– LAN discovery and host/client traffic with bonsoir (mDNS) plus raw
sockets with length-prefixed framing ; no server, no cloud
– Sound search/download flows through three public soundboard sources,
then everything plays offline from the local library
– Pitch extraction is hand-rolled (RMS + zero-crossing) because no
existing pitch package matched what the scoring needed
– The scoring engine compares each attempt against the original
on-device: melody, rhythm, timbre, energy (regression-tested)
– 3D avatars rendered with flutter_scene
– Riverpod 3 for state, go_router for navigation
Source + APK (Android):
Source: r/FlutterDev · by /u/Pale_Finance_8514