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PCPC · 2001 · FPS

Serious Sam: The First Encounter

Serious Sam: The First Encounter (PC, 2001) has an official source code release, Croteam-official/Serious-Engine, and 6 other public projects, including an open-source reimplementation and a source port.

Data checked 2026-10-13 · unbaked registry

PortMaster

Projects

Serious-Engine
Source releaseC++ (Croteam 2016 release); community forks e.g. SeriousSamClassic-VK3,181 starspushed 2020-10-31GPL-2.0 license

An open source version of a game engine developed by Croteam for the classic Serious Sam games.

Official source; community forks active

SeriousSamClassic (tx00100xt) + CecilBotMod
Source portSerious Engine 1 (official GPL) + Linux/BSD builds; CecilBotMod adds…187 starspushed 2026-01-13GPL-2.0 licenserelease 1.10.7

Open source game engine version developed by Croteam for Serious Sam Classic (Windows, Linux, FreeBSD, OpenBSD, NetBSD, macOS, Raspberry Pi OS). Based on https://github.com/Croteam-official/Serious-E…

Active cross-platform builds; bots available

SeriousSamClassic-VK
Reimplementation160 starspushed 2026-01-14GPL-2.0 licenserelease 1.10.7

Open source game engine version developed by Croteam for Serious Sam Classic with Vulkan support (Windows, Linux, FreeBSD, OpenBSD, macOS, Raspberry Pi OS). Based on https://github.com/sultim-t/Serio…

latest release 1.10.7 (2025-02-02)

Serious Sam (Android)
Source port81 starspushed 2026-04-07no licenserelease v1.05.3

Porting of Serious Sam: The First Encounter and Serious Sam: The Second Encounter for Android

status beta

Serious-Engine browser port
Source portCroteam GPL Serious Engine (Pandora/Linux fork) -> browser; hosted on…11 starspushed 2020-12-10GPL-2.0 license

A port to the OpenPandora (and working fine on plain Linux) of the open source version of a game engine developed by Croteam for the classic Serious Sam games. Status: Working (for both FE and SE).

Playable on dos.zone

Serious Sam Evolution (SSE)
Source portsource port of Serious Engine 1.10 (Croteam GPL) with RE'd/backported…GPL-2.0 license

itch.io release

Serious Engine (Croteam GPL release)
Source portCroteam GPL source release (2016); packaged for aarch64 Linux handhel…

In PortMaster (main) as 'Serious Sam - The First Encounter' (serioussam-tfe), updated 2025-09-16; needs game data

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What you need

You need your own copy of the game: these projects ship code only.

Same toolchain

GameMethodYearStarsLast push
DOSDoomSource releaseMatching decomp+8199320k2026-10-12DOSCommand & ConquerSource releaseReimplementation+2199518k2026-10-12WEB2048Source releaseReimplementation+1201413k2026-08-19PC2048 PlusReadable bytecode13k2024-10-24PCMinecraft: Java EditionReimplementationSource port+220117.6k2026-10-11PCBattle for WesnothSource release20056.9k2026-10-12DOSQuakeSource releaseMatching decomp+419966.1k2026-10-12PCThe Elder Scrolls III: MorrowindReimplementation20026.6k2026-10-12

More on PC

GameMethodYearStarsLast push
PCMindustrySource releaseAgent environment201929k2026-10-11PCosu!Source releaseReadable bytecode+1200719k2026-10-12PCCommand & Conquer Remastered CollectionSource release202021k2025-01-16PCRollerCoaster Tycoon 2ReimplementationAgent environment200216k2026-10-12PCDune 2000Reimplementation199818k2026-10-11PCAge of Empires IIReimplementation199914k2026-10-03PCCataclysm: Dark Days AheadSource release201313k2026-10-12PCCivilization VSource releaseReimplementation201011k2026-10-12

Found via tx00100xt/SeriousSamClassic-VK, DreamyCecil/CecilBotMod, SubmitGame/awesome-decomp-games, 42amsterdam.net/samforum/content.php, radek-sprta/awesome-game-remakes

GitHub data checked 2026-10-13. Notes are summaries from the research pass; the project pages are the authority.