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@article{ART003283107},
author={Dongju Kim and Seok-Joo Koh},
title={Implementation of a Mobile RPG NPC System Based on Distributed Hybrid AI},
journal={Journal of Internet of Things and Convergence},
issn={2466-0078},
year={2025},
volume={11},
number={6},
pages={83-90},
doi={10.20465/KIOTS.2025.11.6.075}

TY - JOUR
AU - Dongju Kim
AU - Seok-Joo Koh
TI - Implementation of a Mobile RPG NPC System Based on Distributed Hybrid AI
JO - Journal of Internet of Things and Convergence
PY - 2025
VL - 11
IS - 6
PB - The Korea Internet of Things Society
SP - 83
EP - 90
SN - 2466-0078
AB - Prior research optimized individual NPC combat performance by combining Finite State Machines (FSM) and reinforcement learning but faced limitations regarding cooperative interactions in multi-agent environments and constrained mobile resources. To overcome these issues, this study implements and optimizes a distributed hybrid AI system—integrating FSM/BT with PPO/MARL as proposed in a preceding design study—within a mobile environment. The system adopts a decoupled client-server architecture to efficiently distribute computational loads. The client handles real-time state management and immediate tactical actions using FSM and Behavior Trees (BT), while the server manages individual policy optimization and learns high-level team strategies utilizing PPO and MARL. Both modules execute organic cooperative decision-making through real-time data synchronization. Experimental results demonstrate that the system effectively overcomes multi-agent cooperation limitations by significantly improving metrics, such as concentrated attacks and supportive actions, compared to previous models. Furthermore, by offloading high-load computations to the server, the system significantly reduced client CPU usage and secured stable response times. This study validates the feasibility of operating high-performance cooperative AI in real-time within resource-constrained mobile environments and provides concrete implementation guidelines.
KW - Game AI;NPC Cooperation;Mobile Idle RPG;MARL;PPO
DO - 10.20465/KIOTS.2025.11.6.075
ER -

Dongju Kim and Seok-Joo Koh. (2025). Implementation of a Mobile RPG NPC System Based on Distributed Hybrid AI. Journal of Internet of Things and Convergence, 11(6), 83-90.

Dongju Kim and Seok-Joo Koh. 2025, "Implementation of a Mobile RPG NPC System Based on Distributed Hybrid AI", Journal of Internet of Things and Convergence, vol.11, no.6 pp.83-90. Available from: doi:10.20465/KIOTS.2025.11.6.075

Dongju Kim, Seok-Joo Koh "Implementation of a Mobile RPG NPC System Based on Distributed Hybrid AI" Journal of Internet of Things and Convergence 11.6 pp.83-90 (2025) : 83.

Dongju Kim, Seok-Joo Koh. Implementation of a Mobile RPG NPC System Based on Distributed Hybrid AI. 2025; 11(6), 83-90. Available from: doi:10.20465/KIOTS.2025.11.6.075

Dongju Kim and Seok-Joo Koh. "Implementation of a Mobile RPG NPC System Based on Distributed Hybrid AI" Journal of Internet of Things and Convergence 11, no.6 (2025) : 83-90.doi: 10.20465/KIOTS.2025.11.6.075

Dongju Kim; Seok-Joo Koh. Implementation of a Mobile RPG NPC System Based on Distributed Hybrid AI. Journal of Internet of Things and Convergence, 11(6), 83-90. doi: 10.20465/KIOTS.2025.11.6.075

Dongju Kim; Seok-Joo Koh. Implementation of a Mobile RPG NPC System Based on Distributed Hybrid AI. Journal of Internet of Things and Convergence. 2025; 11(6) 83-90. doi: 10.20465/KIOTS.2025.11.6.075

Dongju Kim, Seok-Joo Koh. Implementation of a Mobile RPG NPC System Based on Distributed Hybrid AI. 2025; 11(6), 83-90. Available from: doi:10.20465/KIOTS.2025.11.6.075

Dongju Kim and Seok-Joo Koh. "Implementation of a Mobile RPG NPC System Based on Distributed Hybrid AI" Journal of Internet of Things and Convergence 11, no.6 (2025) : 83-90.doi: 10.20465/KIOTS.2025.11.6.075