Serious Sam 3: BFE

Serious Sam 3: BFE

118 ratings
Serious Box Solid
File Size
195.713 MB
Feb 15, 2014 @ 9:32am
Aug 28, 2016 @ 9:01am
8 Change Notes ( view )
You need DLC to use this item.

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Serious Box Solid

In 1 collection by Finzy
Serious Box Solid Collection
6 items
Serious Box Solid v.5.1 (Requires Jewel of the Nile DLC!).
Get Part 2 of the mod here!!:
Get Part 3 of the mod here!!:
Get Part 4 of the mod here!!:
Get Part 5 of the mod here!!:
(These add even more content, fixes and weapons, now required!!)
Wanna play this mod in the standard SS3 campaign? Check out the new Campaign Additions mod (optional, still work in progress)!:

Look here for a how to play guide![]

Serious Box Solid is a multiplayer versus total conversion mod that adds a wholly new unique gameplay mode not seen before in Serious Sam; Infiltration!
Taking inspiration from Metal Gear Solid, players are pitted into two teams, Snakes and Guards. Snakes must sneak prone and use a variety of stealth equipment, including CODEC and a box disguise, to find and activate mission objectives that ultimately help them gain the weapons needed to kill the Guard team, while not being seen! In the meanwhile, Guards have to be on the lookout for those pesky Snakes and kill them all before they accomplish their mission! Only guards have access to starting weapons; Snakes must avoid detection to survive.
As of 1.1, the mod also features some singleplayer content! (VR Missions mode, Campaign Alpha)

Main features:

* New gameplay modes with predefined rules, Infiltration, Snake vs Snake and Kerotan Rescue
* New prone and walking animations! Sneak around like a boss! (Big Boss, even)
* New Knife melee weapon with custom animations!
* Disguise yourself as a BOX! YOUR DESTINY IS TO BE IN A BOX!
* Disguise yourself as a BUSH! Become a true bushman!
* New Smoke Grenades that you can use to conceal you and your teammates!
* Fool enemies with fake CODEC calls
* Scripted, objective-based multiplayer gameplay! The more objectives you complete, the better your chances!
* Redone menus, music, texts and sounds to fit the Metal Gear universe
* Lots of player models specifically made for the mod, including Solid Snake, Big Boss, Guards, Major Zero and Sigint
* Custom-built Warehouse, Jungle, Night Hunt, Tanker, Shadow Moses and Middle East maps specifically made for the new gameplay mode, and lots of additional other maps for the new gameplay modes!
* Neutral animals including alligators and snakes that you can hunt, or avoid!
* Singleplayer/Co-Op VR Missions mode is now included!
* Fine cuban cigars...

Caution!!: This mod is a total conversion and WILL likely conflict with any other weapon altering mods! To be perfectly safe, play the mod without having such other mods active. The mod has its own menus as well which may clash with other menu mods (or mods with custom translations).
Swap between mods using the Extras -> Workshop Content menu. The mod does not support standard SP or CO-OP play.

For instructions on how to play, check out the included videos for a feel of how the mod plays like, or read the how to play guide! You may also wish to try the mod out in singleplayer VR mode to see how the levels play out.
The mod requires the Jewel of the Nile DLC because it uses many assets from it. If you cannot see custom menu texts, it's likely because another large mod is overriding them (possibly Solais's resources), if that's the case you can try disabling them, though it's not essential for playing the mod.

Non workshop version of the mod can be downloaded from here (COMPLETE with parts 1-4):
And Part 5:

(Save the .gros to Content/SeriousSam3, same functionality, but keep in mind you need to move them somewhere else when you want to disable the mod. If you had older .gros of the mod already installed, please delete them before using this one!)

If you get the "workshop content update failed" error message, it's a problem on Steam's end and we cannot do anything about it, unfortunately - in that case it is best to restart Steam and try again (especially if it doesn't even start downloading the mod). If restarting doesn't help, try resubscribing to the mod (Unsubscribe -> Launch game in moddable -> Exit -> Subscribe -> Launch moddable game again).

CHANGELOG FROM 5.0 to 5.1 (part 5 only):

- Raised amount of Tranquilizer Rifles per map from 2 to 3.
- Updated translations for lasergun, version, misc stuff. May or may not work depending on load order.

CHANGELOG FROM ??? to 5.0:

- Added Part 5, updated parts 1 & 2 with miscellaneous fixes.

CHANGELOG FROM 1.5 to 1.6:
- Added more content to Part 4 (see that for details).

CHANGELOG FROM 1.4 to 1.5 (part 3 only update):

- Added "Operation Grinch" christmas Infiltration map!
- Added "Showdown" Snake vs Snake map
- Added Big Boss (Santa) and Zero Suit Samus (Santa) models
- Added Peace Island (Fast) alternate version
- Players now take damage from going to deep water in Peace Island

CHANGELOG FROM 1.25 to 1.4 (part 3 only update):

- 2 new Infiltration maps, Peace Island by Finzy and Omaha Beach by Pan
- New gameplay systems, including Fulton Recovery and better objective handling
- New player models:
SNAKES: Mei Ling, Kazuhira Miller, Big Boss (Peace Walker), Raiden (Default), Funky Finzy (Various Camos), US Soldier, Spy
GUARDS: PMC Troopers, Haven Guard, Tea

Older changelogs removed to save space, they're still available on the Seriously forums if you really want to read them though. :P


- Floating crumbs in Rassvet Jungle in some places.
- Black screen when joining ongoing games sometimes. This is a game bug we can't fix, you just need to wait until the current round finishes.
- The game ending script in Middle East Warzone may break if the player exits the helicopter before getting teleported. If this happens then all the guards must still be killed in order to win.
- Guards' exclamation mark ability does not work with custom assault rifle mods, so it is recommended to use included mod weapons for the AR


Finzy - Map building, main gamemode design & creation, menus
Pan - Models, textures, weapons & tools, additional maps & gamemodes
Viper45 - Contributing animations and weapons
Some player model/tool assets and sounds from Metal Gear Solid 3: Snake Eater, 2: Sons of Liberty, Metal Gear Rising: Revengeance and 4: Guns of the Patriots, we do not take credit for them.
Sounds acquired from YouTube using YouTube Downloader.
This mod includes the post processing changes of the "No Redscreen" mod by StealthToast
Uses some free base 3D models from
Alpha testing by: Luigi, noam2000, Evil Vasile, Ariel k444, Evil Conker, Sly7745, Crusader Bob, Scratch, Solais (if I missed a name drop me a message, kthxbye :P)
Moogleoutfitters ( for Black Mage Hood port from FFXIII: Lightning Returns
Special thanks to Ryason55 and Mischievous for scripting help
Ryason for his original "Play as multiplayer models in singleplayer" mod (the changes are incorporated into this mod)
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Not working. Game crash
«ⓌⓎⓋⒺⓇⓃ» Oct 6, 2017 @ 4:42am 
How can we blow up walls with the smoke grenades now...?
the C4 function isn't working anymore. can't blow smoke grenade up
Finzy  [author] Sep 16, 2016 @ 12:15pm 
Because it's a total conversion mod. You probably have something else overriding it though (another menu mod?), it shouldn't display fully white like that.
Титан Sep 16, 2016 @ 9:12am 
Finzy  [author] Aug 28, 2016 @ 9:57am 
Updated with Part 5 that features more content, including a new singleplayer/co-op mission (Tanker Incident).
Lovliz Aug 8, 2016 @ 2:31pm 
I only have first mission available no matter how many time I replay in, alone or coop, I got additional packs for this campaign, plz help
◖Kool Aid◗ Jan 14, 2016 @ 11:35am 
yes it works now, it's my mistake but i give a LIKE
Finzy  [author] Jan 4, 2016 @ 4:08am 
No idea, maybe a corrupt download somehow, that shouldn't happen. You got all the parts installed and activated at once right?
◖Kool Aid◗ Jan 3, 2016 @ 12:58pm 
Something is wrong with the mod to me the game not open and this error message appears "Cannot Load 'content/ SeriousSam3/ GlobalGameParameters.rsc' Cannot open file Content/ SeriousSam3/ YouWon.ogg" Please Help, but y think the mod is too much good
Slim Dec 19, 2015 @ 4:06pm 
Hey, would it be possible to have only the playermodels included in this mod separate from this?

I like them, yet I don't want to burden others I play with from downloading a whole major mod.