How to Play
Diamond Legend is a deep single-player baseball franchise simulator. You inherit a struggling club and have 25 in-game seasons to build a dynasty. This guide walks you through the first hour and the concepts you'll return to every day.
The core loop
Every real-world day you play a single in-game day. You check the front-office briefing, resolve injuries and roster alerts, tweak your lineup if needed, then hit Sim Day, Sim Week, or Sim Season. Games auto-play; you're the owner and GM, not the in-game manager.
Your roster (132 players across 4 levels)
- MLB — 26 active players. Must field a legal starting 9 with universal DH.
- AAA — 30 players. First call-up when injuries hit.
- AA — 36 players. Mid-tier development.
- A — 40 players. Young prospects and international signings.
Every level enforces pitcher/position splits. If a level is out of compliance the sim pauses and tells you exactly what's wrong.
Simulation controls
- Sim Day — 1 game. Fastest way to react to a lineup change.
- Sim Week — 7 days. Pauses on major injuries or roster violations.
- Sim Season — runs to season end. Pauses on any blocker so nothing sneaks past you.
- Watch Live — pitch-by-pitch view of the current game.
Building the dynasty
- Amateur Draft — pick prospects each summer; negotiate with college-bound players.
- Trades — cap-validated trade builder with post-deal payroll preview.
- Free Agency — mid-season signings and offseason pursuits from the shared FA pool.
- Coaching Staff — five specialty roles (pitching, hitting, bench, farm, medical).
- Injuries & IL — severity tiers, replacement players auto-optioned back on activation.
- Playoffs — two conferences × three divisions × 4 seeds per side.
- Legacy — permanent history, achievements, and Hall of Fame across seasons.
Saves & cloud sync
Your franchise saves locally in your browser and syncs to the cloud when you're signed in. Cloud always wins on load — sign in on a new device and your dynasty follows you.
Free vs Pro
Free players get the full simulation, 25 seasons, and every roster feature. Pro removes ads, adds cloud slots, and unlocks power-user tools like the Commissioner mode.
Ready to start?
The prologue walks you through your first day as owner in about 5 minutes.
Open your franchise →