Secure coding patterns
Planned lessons would turn common code-level vulnerability shapes into bounded review and repair exercises.
Paired curriculum · solo practice · solo competition
The current Discord Activity includes eight NET-101 lessons for Solo and Pair, plus one session-only HARBOR-7 Duel. Progress, results, rankings, belts, and payments are not saved in this beta.
A private Discord Activity beta. Sessions produce playtest feedback, not persistent credentials or account progression.
What exists today
HackSim.io currently tests one course and three ways to practice it. Everything below is present in the hosted tester build.
Solo and Pair currently share one complete eight-lesson Network Foundations course. Each lesson moves through Blue decisions, a role swap, Red decisions, and a debrief.
Solo mirrors both roles on one device. Pair gives two invited testers distinct evidence and requires both people to propose, revise, and lock decisions together.
The HARBOR-7 Duel lets two testers work one incident from opposing roles, swap seats, and review an in-session result. It is not ranked matchmaking.
The current build records decisions and consequences inside the live session so testers can review what happened. Those records do not become account credentials.
The beta runs on Vercel with Supabase Realtime transport. Invited testers launch it through Discord; a developer computer does not need to stay online.
There are no saved completions, rankings, belts, payments, prizes, or public signup in this release. We are testing the learning loop before adding a platform around it.
Curriculum
Invited testers can run all eight NET-101 lessons in Solo or Pair. The current build does not award progression, credentials, or league placement.
The complete course currently available in the hosted beta. Results remain session-only and do not unlock account progression.
These are roadmap directions. Course names, lesson counts, and release order are not final.
The beta intentionally does not save completion, scores, wins, or losses to an account.
Current Duel results exist only inside the active session. There are no ratings, wagers, prizes, or leaderboards.
What the hosted tester build does and does not do.
1v1 Duel Mode
Two invited testers operate one HARBOR-7 incident, swap roles, and review an in-session result. No result becomes a rating, belt, wager, credential, or saved match record.
Gather evidence, choose tools, and
act inside the shared incident.
Read telemetry, investigate, and
respond inside the same incident.
No public matchmaking. Both testers must already have Discord App Tester access.
Private Discord beta
The hosted MVP is available only to developers and App Testers who HackSim explicitly invites through Discord. There is no public signup form on this page.
Accept the App Tester or developer-team invitation, enable Discord's Application Test Mode, and use the application ID in the invitation. The Activity runs on Vercel and Supabase; no developer computer needs to stay online.
This test has no payments, wagers, saved progression, rankings, or belts. This page does not collect or submit your email address.
Winter of 2026
Planned developer track
HackSim.io is currently focused on validating NET-101. A developer curriculum may follow only after its lessons, scoring, and evidence model have been built and tested.
The example shows the kind of reasoning a future track could teach. It is illustrative copy only: HackSim.io does not currently offer this lesson, language tracks, automated code analysis, or developer-team metrics.
Planned lessons would turn common code-level vulnerability shapes into bounded review and repair exercises.
A future track may ask developers to inspect generated code, identify unsafe assumptions, and explain a safer change.
Planned review sessions would focus on evidence, false-positive control, and clear communication before a change ships.
Any future team reporting would require persistent accounts, a privacy review, and validated scoring. None is active today.
Winter of 2026
Planned progression model
The core curriculum pairs two learners on one bounded incident. Complementary Red and Blue responsibilities make communication, handoffs, scope, and judgment part of the lesson.
After the paired lesson, rehearse the unlocked skill independently. Procedural variation builds fluency without confusing solo completion with professional readiness.
Apply the skill against pressure, uncertainty, and an unpredictable opponent. Competition tests independent decisions after the collaborative foundation is in place.
Bring the experience back to a paired session. Explain your decisions, compare perspectives, repair misunderstandings, and build evidence that a real team can trust.
Winter of 2026
Teams roadmap
The present HackSim.io build is an invited tester Activity, not an enterprise training service. These concepts remain on the roadmap and will require separate product, privacy, scoring, and deployment work.
A future team release may provide controlled access and team-scoped sessions after the identity and privacy model is designed.
Custom curriculum is a research direction. HackSim.io does not currently scan customer code or infrastructure.
Private leagues would require persistent ratings and validated scoring. Neither exists in the current beta.
Reporting is deferred until outcomes can be stored, explained, consented to, and audited responsibly.
Recruiting roadmap
HackSim.io does not currently publish Elo ratings, response-speed profiles, verified credentials, jobs, or candidate contact tools. If recruiting features are built, they will start from learner consent and explainable evidence.
A future profile would show only evidence the learner has agreed to share.
There is no recruiter marketplace, talent browser, or job board in the current release.