Amazon-backed RIVR is expanding testing of its autonomous delivery robots in extreme weather, difficult terrain, and unpredictable real-world conditions to improve reliability before wider deployment. The company is evaluating performance in heavy rain, snow, ice, mud, steep hills, uneven sidewalks, crowded pedestrian areas, road construction, and changing traffic patterns. The testing initiative received wider attention after being highlighted by Cointelegraph's X account. RIVR aims to ensure year-round operational reliability by exposing robots to these conditions early, helping improve navigation systems, mobility, obstacle detection, and decision-making algorithms before commercial deployment. Industry analysts believe successful testing under harsh conditions could significantly accelerate commercial adoption.