CloudSims
Draft for review. This document is a product-specific starting point and has not yet been reviewed by legal counsel. Have it reviewed before relying on it in production.

Terms of Service

These terms govern your use of CloudSims and CloudSims Exams (the “Service”), operated by XAD Labs (“we”, “us”). By using the Service — playing the game, creating an organisation account, or sitting an assessment — you agree to these terms. Version 2026-07-24.

1. The Service

CloudSims is an educational simulation. You assemble a cloud architecture from a bounded palette and the Service scores it against a hidden model, with explanations. CloudSims Exams lets organisations invite candidates to sit a timed version of that simulation and review the results.

The simulation models deliberately simplified “game physics”. Cost, latency, and availability figures teach relative trade-offs; they are not estimates of any real cloud provider’s pricing or behaviour and must not be relied on as such.

2. Accounts

  • Organisation (recruiter) accounts sign in by emailed link. You are responsible for keeping access to your email account secure, and for activity under your account.
  • Free-game and candidate sessions are anonymous. You may not attempt to de-anonymise, link, or re-identify other users’ sessions.
  • You must be old enough to enter a binding contract in your jurisdiction to hold an account.

3. Assessments

  • Organisations are responsible for their own use of the assessment tool, including having a lawful basis to invite a candidate and to process that candidate’s data, and for telling candidates how their results will be used.
  • Invitation links are single-use and time-limited. Sharing, reselling, or automating them is not permitted.
  • Candidates agree that their decisions during an assessment are recorded and shared with the inviting organisation as described in the Privacy Policy.

4. Acceptable use

You agree not to:

  • reverse-engineer, scrape, or attempt to extract the scoring model, reference solutions, answer keys, or seed values, or otherwise defeat the server-side scoring;
  • probe, load-test, or interfere with the Service’s security or availability;
  • use the Service to build a competing product, or copy its content, challenges, or simulation into another product;
  • upload unlawful content or use the Service to break any applicable law.

5. Intellectual property

The Service — its engine, simulation, challenge content, copy, and original icon set — is owned by XAD Labs and protected by copyright and other laws. These terms grant you a limited, revocable, non-exclusive right to use the Service as intended, and nothing more. All rights not expressly granted are reserved.

CloudSims is not affiliated with, endorsed by, or sponsored by any cloud provider. Third-party names referenced in educational content are the trademarks of their respective owners and are used descriptively.

6. Disclaimers

The Service is provided “as is” and “as available”, without warranties of any kind to the fullest extent the law allows. We do not warrant that it will be uninterrupted, error-free, or fit for any hiring, certification, or architectural decision. Scores and reports are one input among many and are not professional advice.

7. Limitation of liability

To the fullest extent permitted by law, XAD Labs is not liable for indirect, incidental, or consequential damages, or for hiring, business, or architectural decisions made using the Service. Where liability cannot be excluded, it is limited to the amount you paid us for the Service in the twelve months before the claim.

8. Suspension and termination

We may suspend or end access that breaches these terms or risks the Service or other users. You may stop using the Service at any time; organisation accounts may request deletion as described in the Privacy Policy.

9. Changes

We may update these terms. Material changes update the version above; continued use after a change means you accept the new terms. Where we hold an account for you, we will make reasonable efforts to notify you.

10. Governing law

These terms are governed by the laws of Sri Lanka, and the courts of Sri Lanka have exclusive jurisdiction over any dispute, without regard to conflict-of-laws rules.

11. Contact

Questions about these terms: zameer@xadlabs.com · XAD Labs, xadlabs.com.

Last updated 24 July 2026.