Build food chains and webs by connecting predators to their prey. Explore 6 real-world ecosystems across 18 levels.
Drag connections between organisms to build food chains. Start with simple 3-organism chains and work up to complex food webs. Learn real ecology along the way!
Tap an organism, then tap another to connect prey → predator
Food Chain is a free browser-based ecology puzzle game where you build food chains and food webs by connecting organisms in the correct predator-prey relationships. Explore six real-world ecosystems — Savanna, Ocean, Rainforest, Arctic, Desert, and Coral Reef — each with three levels of increasing complexity. Start with simple three-organism chains and progress to intricate webs with six to eight interconnected species. Every organism comes with real ecological facts about its diet, habitat, and role in the ecosystem.
Each level presents organism cards scattered across the play area. Tap or click one organism, then tap another to draw a connection arrow from prey to predator. On desktop you can also drag between cards. Correct connections glow green while incorrect ones flash red and disappear. Hit the Check button to verify your food web. You earn points for each correct connection, with bonus points for speed and making no mistakes. After completing all 18 levels, see your total accuracy, time, and ecosystems mastered.
Food Chain includes 6 real-world ecosystems: Savanna, Ocean, Rainforest, Arctic, Desert, and Coral Reef. Each biome has 3 increasingly complex levels, totaling 18 puzzles that progress from simple 3-organism chains to intricate food webs with 6-8 species.
Yes! Every organism includes real ecological facts about its diet and habitat. After each level you'll see a "Did You Know?" fact about the ecosystem. The game teaches trophic levels, energy transfer, predator-prey relationships, and how real food webs interconnect.
A food chain is a single linear pathway showing how energy flows from one organism to the next (e.g., grass → zebra → lion). A food web is a network of interconnected food chains within an ecosystem, showing how multiple species share prey and predators. Most real ecosystems have complex food webs rather than simple chains.
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