New file: source/net/delta.c
typedef struct uint32_t last_seq; uint8_t inputs[2]; // player1 + player2 direction bits int16_t bullet_pos[4]; // max 4 bullets uint8_t health[2]; game_snapshot_t;
void delta_encode(game_snapshot_t *base, game_snapshot_t *new, uint8_t out) out[0] = (new->inputs[0] ^ base->inputs[0])
The updated link fix still requires Microsoft's old DirectPlay. msxblmultiplayer link fix updated
Fix: The updated v2.5.2 fix includes a fake CD-key generator in the crack folder. Run Keygen.exe, copy the key, and paste it into the game's prompt. This does not bypass copyright; it simply spoofs the dead GameSpy authentication server.
[LINK] Relay handshake OK – public IP 203.0.113.45:56789
[LINK] Peer found via relay, RTT = 47ms
[SYNC] Skew corrected: -23ms → +2ms
[DELTA] Packet size: 86 bytes (was 1024)
The original MSX Blasto multiplayer mode suffered from three critical failure points:
The “link fix updated” refers to a revised network middleware layer that replaces the legacy direct‑socket model with a lightweight relay + delta‑compression system. New file: source/net/delta
Before we dive into the fix, let’s understand the culprit. MSXBMultiplayer is a legacy DLL (Dynamic Link Library) file used by the PC versions of the original Battlefront games. It handles the connection logic between your client and the multiplayer matchmaking servers.
Originally, these games relied on GameSpy. When GameSpy shut down in 2014, the MSXBMultiplayer link broke permanently. Community developers stepped in to create redirectors—modified DLLs and host files that point your game to community-run master servers.
The problem? Windows Updates, antivirus software, and new router security protocols have repeatedly broken these older fixes. Hence, we now have the MSXBMultiplayer link fix updated for modern systems (Windows 10/11). The updated link fix still requires Microsoft's old
Not all MSX games actually work over a null-modem cable. Here's the 2024 verified list for link play:
| Game | Mode | Works on Real HW? | Works on openMSX? | | :--- | :--- | :--- | :--- | | Flight Deck | 2-player competitive | Yes | Yes (with timing fix) | | Thexder | 2-player alternating | Yes | Yes | | Arkanoid | 2-player vs | Yes | Partial (sound desync) | | Golvellius | Data exchange only | Yes | Yes | | King’s Valley II | Co-op puzzle | Yes | Yes (set baud to 2400) |
New find in 2024: A homebrew game called MSX-Battle just released on MSX.org that uses modern UDP-based linking—no RS-232 required (uses the joystick port's undocumented pins). Check it out.