1. Serious Sam 4 Achievements
  2. Hard Science Fiction achievement
Serious Sam 4

Serious Sam 4

2,982
1,000
54
3.18
90,095
4,336 (5%)
8-10h
Lists Game
Serious Sam 4
tracking their Serious Sam 4 achievements.
Click here to track your progress.

Hard Science Fiction achievement in Serious Sam 4

Hard Science Fiction

Get a weaponized black hole, using science.

Hard Science Fiction0
2 guidesOnline/Offline - These achievements can be obtained in either an online or offline game mode.Single Player - These achievements can be obtained by a single player.Cooperative - These achievements can be obtained by two or more players in a cooperative game mode who have met the achievement requirements.
Hide ads

How to unlock the Hard Science Fiction achievement

  • New xDante1986New xDante1986
    13 Dec 2021 13 Dec 2021 13 Dec 2021
    11 0 1
    Actions
    Go to the level The Die Is Cast and continue with the main quest Head Into Rome. When you getting downhill and looking on main objective marker and you see 350 m distance. Then on right side you can find starter for side quest Portal Kombat. Then just follow white marker and finish an easy side quest, where you need to activate 5 buttons and kill some enemies.

    Guide not helping? View 1 more guide for this achievement.

    Showing only comment. Leave a comment.
    Archer Spenseshould probably add a note so people like me don't get confused reading the TA guide that the only side quest with no achievement is Portal Too. Technically, there IS an achievement for it, but it was already awarded for completing Portal Kombat.
    Posted by Archer Spense on 14 Jun 23 at 07:33

  • Have you got any tips or tricks to unlock this achievement?
    Add a guide to share them with the community.

    Add a guide
  • Its Jing WeiIts Jing Wei
    07 Dec 2021 07 Dec 2021 07 Dec 2021
    1 0 1
    Actions
    For this achievement you will find a side mission called "Portal Kombat" on the mission "The die is cast" when you are making your way into rome. Follow the path and continue defending the portal until all 5 buttons are pressed and the achievement will pop. To make this easier make sure you have infinite ammo turned on and even tourism difficulty or play on co-op and set respawn timer to 0.
    Showing only comment.
    wariowarriorThis didn’t pop for me due to the Xbox issues a few days back but in the level ‘In Carcassonne’ a side quest called ‘Portal Too’ came up and asks to do the exact same thing. It was after the princess side quest
    Posted by wariowarrior on 12 Dec 21 at 20:46
Do you have a question about this achievement? Please post it in the Serious Sam 4 Forum