Dev tools · alternatives · 2026

24 alternatives to FaaS Wars global serverless challenge

Learn serverless compute and win upto USD 1400

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. FaaS Wars global serverless challenge launched in 2021; newer entries below may have overtaken it.

1. 1BL
   Bot Land, a game where you fight others via code▲444

   2019 · bot.land · its alternatives →

2. 2AM
   Airmash – Multiplayer Missile Warfare HTML5 Game▲1,535

   2017 · airma.sh · its alternatives →

3. 3BA
   Byte Arena – Code Your Fighter Bot▲179

   2017 · doc.bytearena.com · its alternatives →

4. 4BI
   Botwars.io – Battle robots with your favourite programming language▲30

   2021 · botwars.io · its alternatives →

5. 5
   ClawKing▲93

   On-chain AI battle royale where 8 lobsters fight

   Mar 2026 · clawking.cc · its alternatives →

6. 6
   Playground▲198

   Earn $100K+ in weekly rewards for hacking AI agents.

   Jul 2026 · playground.fabraix.com · its alternatives →

7. 7
   CodeFights▲96

   Practice Programming

   2014 · its alternatives →

8. 8
   Agent Arena▲357

   The first public arena for AI agents

   Jun 2026 · arena42.ai · its alternatives →

9. 9
   Caw▲80

   Open source web terminal multiplexer for AI agents

   Jul 2026 · caw.rocks · its alternatives →

10. 10
    Plearnyx▲35

    Coding tournament

    2023 · its alternatives →

11. 11
    Etherbots▲9

    Decentralised Robot Wars on the Blockchain.

    2018 · its alternatives →

12. 12C
    Codewars▲198

    2014 · codewars.com · its alternatives →

13. 13
    Wingbits AI▲266

    AI agents for real-time aircraft monitoring and alerts

    May 2026 · wingbits.ai · its alternatives →

14. 14BA
    Bomberland – An AI competition to build the best Bomberman bot▲99

    2021 · gocoder.one · its alternatives →

15. 15GW
    Game where you write Python robots to fight other players▲142

    2013 · robotgame.org · its alternatives →

16. 16
    Remote OpenClaw▲81

    13,000+ MCP servers, skills & plugins for AI coding agents

    Jul 2026 · codexmarketplaces.com · its alternatives →

17. 17JB
    JavaScript Battle – A daily artificial intelligence battle▲137

    2014 · javascriptbattle.com · its alternatives →

18. 18
    Playcode▲139

    The world's best AI website builder. 10 years in the making.

    Mar 2026 · playcode.io · its alternatives →

19. 19
    Codewars▲74

    Improve your skills by training w/ others on code challenges

    2014 · its alternatives →

20. 20IR
    INDI Robot Combat Competition (Dutch)▲6

    2019 · indirobotgames.nl · its alternatives →

21. 21EI
    Etherbots.io – Collectible fighting robots on the blockchain▲18

    2018 · etherbots.io · its alternatives →

22. 22
    Decentralize AI Hackathon▲16

    A global hackathon for the open AI future

    Jun 2026 · decentralizeai.tech · its alternatives →

23. 23DR
    Decentralized robots (and things) orchestration system▲69

    Hi HN, we build an open-source operating system extension for orchestrating robot swarms fully decentralized. This first beta version allows you to create fully decentralized robot swarms. The system will set up a wireless mesh network and run a p2p networking stack on top of it, such that nodes can interact with each other through various abstractions using our SDKs (Rust, Python, TypeScript) or a CLI. We hope this is a step toward better inter-robot communication (and a fun project if you have a few Raspberry Pis lying around). Our mesh network is created by B.A.T.M.A.N.-adv and we’ve…

    2025 · docs.p2p.industries · its alternatives →

24. 24
    roboduels▲3

    Control & Fight Real Robots on the Internet for Cash Prizes.

    2019 · its alternatives →

Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →