Undercover: Word Party Game by Yanstar Studio OU represents a compelling fusion of social deduction mechanics and word-based gameplay. The iOS application occupies a unique position in the party game market, combining linguistic challenges with psychological deduction in a package designed for group entertainment. With a 4.85-star rating, the app demonstrates strong user acceptance while offering distinctive gameplay that differentiates it from conventional party games. The core gameplay revolves around players receiving secret words that determine their hidden identities—either 'undercover' agents or innocent civilians. Through structured questioning rounds and discussion phases, participants must deduce others' affiliations while concealing their own. The application supports both local multiplayer sessions through device sharing and online matchmaking with random players worldwide. Game sessions typically accommodate 4-8 participants, with round durations adjustable from 3-10 minutes depending on player preferences. The word database contains thousands of term pairs, ensuring varied gameplay experiences across sessions. User experience benefits from a minimalist interface that prioritizes readability and quick comprehension during tense gameplay moments. The design employs high-contrast color schemes to distinguish player roles subtly, while vibration feedback and visual cues enhance the revelation phases. Real-world usage patterns indicate strongest adoption during social gatherings, with many users reporting successful integration into parties, family events, and virtual hangouts. The offline mode proves particularly valuable in environments with limited connectivity, while online matchmaking typically completes within 30 seconds during peak hours. User feedback analysis reveals consistent praise for the game's social engagement potential. CmdrCody09 (2025-02-24) notes it's 'very fun to play with family and friends,' while IAmGoat13 (2020-10-31) highlights its effectiveness for multiplayer sessions during lockdown periods. Several reviews, including Panda.001 (2025-04-19), acknowledge the reasonable ad frequency that appears between online games rather than during active gameplay. Some users like Kitty Winters (2023-05-17) note occasional immature community interactions but maintain overall positive assessments. The application demonstrates notable strengths in its flexible multiplayer support and strong replay value through randomized word assignments. Limitations include occasional matchmaking delays during off-peak hours and the learning curve for new players unfamiliar with social deduction mechanics. The game performs optimally in groups of 6-8 players with moderate familiarity among participants, making it particularly suitable for ice-breaking sessions, casual social events, and virtual team-building activities where verbal interaction and deduction skills can shine.