AWS Cost Estimation 2025 - Gaming Platform RGS
10K Concurrent Requests Architecture
Executive Summary
This document provides a comprehensive AWS cost estimation for the Remote Gaming System (RGS) platform capable of handling 10,000+ concurrent spin requests. The architecture follows AWS best practices with multi-AZ deployment for high availability and scalability.
Architecture Overview
Infrastructure Components
- 1 VPC - Virtual Private Cloud with multi-AZ deployment
- 1 Application Load Balancer - Auto-failover and health checks
- 1 Internet Gateway - Internet connectivity (free)
- 2 Public Subnets - One per availability zone
- 2 Private Subnets - One per availability zone (for security)
- 2 NAT Gateways - High availability internet access for private subnets
- 1 ECS Fargate Cluster - Serverless container orchestration
- 3 ECS Services - Game Backend, RGS, CMS Backend
- 1 MemoryDB Redis Cluster - High-performance caching
- 1 MongoDB Atlas Cluster - Dedicated database cluster
- 3 ECR Repositories - Container image storage
Detailed Cost Breakdown
1. Compute Costs (ECS Fargate)
Task Configuration for 10K Concurrent Requests
- Game Backend Service: 6-8 tasks
- RGS Service: 4-6 tasks
- CMS Service: 2-3 tasks
- Total Tasks: 12-17 tasks running simultaneously
Resource Allocation per Task
- vCPU: 2 vCPU per task
- Memory: 4 GB per task
- Platform: Linux/x86
Fargate Pricing (US East - N. Virginia)
- vCPU Cost: $0.04048 per vCPU per hour
- Memory Cost: $0.004446 per GB per hour
Monthly Compute Costs
Conservative Estimate (12 tasks):
- vCPU: 12 tasks × 2 vCPU × $0.04048 × 730 hours = $710.41
- Memory: 12 tasks × 4 GB × $0.004446 × 730 hours = $155.78
- Total: $866.19/month
High Load Estimate (17 tasks):
- vCPU: 17 tasks × 2 vCPU × $0.04048 × 730 hours = $1,006.33
- Memory: 17 tasks × 4 GB × $0.004446 × 730 hours = $220.68
- Total: $1,227.01/month
Average Monthly Compute Cost: $1,046.60
2. Load Balancer Costs
Application Load Balancer (ALB)
- Hourly Charge: $0.0252 per hour
- LCU Usage: ~2 LCUs for 10K concurrent requests
- LCU Rate: $0.008 per LCU-hour
Monthly ALB Costs
- Hourly Charges: $0.0252 × 730 hours = $18.40
- LCU Charges: 2 LCUs × $0.008 × 730 hours = $11.68
- Total ALB Cost: $30.08/month
3. Networking Costs
NAT Gateway Costs (2 Gateways for HA)
- Hourly Rate: $0.045 per NAT Gateway per hour
- Data Processing: $0.045 per GB processed
- Estimated Data: 2 TB/month through NAT Gateways
Monthly Networking Costs
- NAT Gateway Hours: 2 × $0.045 × 730 hours = $65.70
- Data Processing: 2,000 GB × $0.045 = $90.00
- Cross-AZ Data Transfer: 500 GB × $0.02 = $10.00
- Total Networking Cost: $165.70/month
4. Database & Cache Costs
MongoDB Atlas (AWS Dedicated Cluster)
- Cluster Size: M40 (Dedicated)
- Configuration: Multi-region with backup
- Estimated Cost: $500-600/month
MemoryDB Redis Cluster
- Node Type: r6g.large (2 vCPU, 12.93 GiB)
- Configuration: 2 nodes for HA
- Estimated Cost: $180-220/month
Monthly Database Costs
- MongoDB Atlas M40: $550.00
- MemoryDB Redis: $200.00
- Total Database Cost: $750.00/month
5. Container Registry (ECR)
Storage Requirements
- Game Backend Image: ~1.5 GB
- RGS Image: ~1.2 GB
- CMS Backend Image: ~1.3 GB
- Total Storage: ~4 GB
- Version History: ~20 GB total
Monthly ECR Costs
- Storage: 20 GB × $0.10 = $2.00/month
- Data Transfer: Included within region
- Total ECR Cost: $2.00/month
6. Data Transfer Costs
Internet Data Transfer
- Outbound to Internet: ~1 TB/month
- Rate: $0.09/GB for first 10 TB
Monthly Data Transfer Costs
- Internet Transfer: 1,000 GB × $0.09 = $90.00/month
Total Monthly Cost Summary
| Component | Monthly Cost |
|---|---|
| ECS Fargate Compute | $1,046.60 |
| Application Load Balancer | $30.08 |
| Networking (NAT + Cross-AZ) | $165.70 |
| MongoDB Atlas | $550.00 |
| MemoryDB Redis | $200.00 |
| ECR Storage | $2.00 |
| Internet Data Transfer | $90.00 |
| Total Monthly Cost | $2,084.38 |
| Total Annual Cost | $25,012.56 |
Scaling Scenarios
Low Traffic (5K Concurrent Requests)
- Compute Tasks: 8-10 tasks
- Monthly Cost: ~$1,650
- Annual Cost: ~$19,800
Peak Traffic (15K Concurrent Requests)
- Compute Tasks: 20-25 tasks
- Monthly Cost: ~$2,800
- Annual Cost: ~$33,600
Enterprise Scale (25K+ Concurrent Requests)
- Compute Tasks: 35-40 tasks
- Monthly Cost: ~$4,200
- Annual Cost: ~$50,400
Cost Optimization Recommendations
1. Reserved Capacity (Up to 50% Savings)
- Fargate Savings Plans: 1-3 year commitments
- Potential Savings: $6,000-12,000 annually
2. Fargate Spot (Up to 70% Savings)
- Use Cases: Non-critical workloads, batch processing
- Potential Savings: $3,000-7,000 annually
3. VPC Endpoints (Reduce NAT Gateway Costs)
- S3 VPC Endpoint: Free gateway type
- DynamoDB VPC Endpoint: Free gateway type
- Potential Savings: $1,200-2,400 annually
4. Right-Sizing and Auto-Scaling
- CPU-based auto-scaling: Scale down during low traffic
- Scheduled scaling: Predictable traffic patterns
- Potential Savings: $2,000-4,000 annually
5. Database Optimization
- MongoDB Atlas: Consider reserved instances
- MemoryDB: Use data tiering for cost efficiency
- Potential Savings: $1,800-3,600 annually
Regional Pricing Comparison (Annual Costs)
| Region | Total Annual Cost | Difference |
|---|---|---|
| US East (N. Virginia) | $25,012 | Baseline |
| US West (Oregon) | $25,512 | +$500 |
| EU (Ireland) | $27,014 | +$2,002 |
| EU (Frankfurt) | $28,215 | +$3,203 |
| Asia Pacific (Singapore) | $31,018 | +$6,006 |
Cost Monitoring & Alerts
Recommended AWS Cost Controls
- Budget Alerts: Set at $2,500/month (20% buffer)
- Cost Anomaly Detection: Automated unusual spend alerts
- Reserved Instance Recommendations: Monthly optimization reviews
- Resource Tagging: Track costs by service and environment
Key Metrics to Monitor
- Cost per 1K requests: Target < $0.25
- Monthly growth rate: Monitor for unexpected increases
- Resource utilization: Keep CPU/Memory > 70%
- Data transfer efficiency: Optimize cross-AZ communication
Conclusion
The estimated annual cost of $25,012 for handling 10K+ concurrent requests represents a competitive and scalable solution. With proper optimization strategies, costs can be reduced by 30-40%, bringing the annual expenditure down to $15,000-17,500.
This architecture provides enterprise-grade reliability, security, and performance while maintaining cost efficiency through AWS's pay-as-you-use model.