The answer is: YES, without to install player-tools you might have several TABs with custom Games.
Q: And what do I need for that?
A: A kind of Notepad. For sure you need to know how to edit 2 text-type files.
Let's see these targets:
We can make backup of UBrowser.INT and UnrealTournament.ini files first before to edit them. Of course, by editing these 2 files we can unlock UT for showing us custom game-types in separate TABS
UBrowser.INT
New Content:
[Public]
[ServerListTitles]
UBrowserUT=UT Servers
UBrowserLAN=LAN Servers
UBrowserPopulated=Populated Servers
UBrowserDeathmatch=DeathMatch
UBrowserTeamGames=Team Death Match
UBrowserCTF=Capture The Flag
UBrowserDOM=Domination
UBrowserAS=Assault
UBrowserLMS=Last Man Standing
;New Content goes bellow
UBrowserMH=Monster Hunt
UBrowserMHA=Monster Hunt Arena
UBrowserCOOP=Coop Game2
UBrowserTMH=Team Monster Hunt
UBrowserSiege=Siege GI
UBrowserSiegeFree=FreeSiege GI
UBrowserBurgerCTF=Burger CTF
;End of content added
UBrowserAll=All Servers
New Content:
[UBrowser.UBrowserMainClientWindow]
LANTabName=UBrowserLAN
ServerListNames[0]=UBrowserUT
ServerListNames[1]=UBrowserLAN
ServerListNames[2]=UBrowserPopulated
ServerListNames[3]=UBrowserDeathmatch
ServerListNames[4]=UBrowserTeamGames
ServerListNames[5]=UBrowserCTF
ServerListNames[6]=UBrowserDOM
ServerListNames[7]=UBrowserAS
ServerListNames[8]=UBrowserLMS
;Added bellow
ServerListNames[9]=UbrowserMH
ServerListNames[10]=UBrowserMHA
ServerListNames[11]=UBrowserCOOP
ServerListNames[12]=UbrowserTMH
ServerListNames[13]=UBrowserSiege
ServerListNames[14]=UBrowserSiegeFree
ServerListNames[15]=UBrowserBurgerCTF
;End of adds
ServerListNames[16]=UBrowserAll
ServerListNames[17]=None
ServerListNames[18]=None
ServerListNames[19]=None
ServerListNames[20]=None
....
bKeepMasterServer=True
....
[UBrowserPopulated]
ListFactories[0]=UBrowser.UBrowserSubsetFact,SupersetTag=UBrowserAll,MinPlayers=1,bCompatibleServersOnly=True
[UBrowserDeathmatch]
ListFactories[0]=UBrowser.UBrowserSubsetFact,SupersetTag=UBrowserAll,GameType=DeathMatchPlus,bCompatibleServersOnly=True
[UBrowserTeamGames]
ListFactories[0]=UBrowser.UBrowserSubsetFact,SupersetTag=UBrowserAll,GameType=TeamGamePlus,bCompatibleServersOnly=True
[UBrowserCTF]
ListFactories[0]=UBrowser.UBrowserSubsetFact,SupersetTag=UBrowserAll,GameType=CTFGame,bCompatibleServersOnly=True
[UBrowserDOM]
ListFactories[0]=UBrowser.UBrowserSubsetFact,SupersetTag=UBrowserAll,GameType=Domination,bCompatibleServersOnly=True
[UBrowserAS]
ListFactories[0]=UBrowser.UBrowserSubsetFact,SupersetTag=UBrowserAll,GameType=Assault,bCompatibleServersOnly=True
[UBrowserLMS]
ListFactories[0]=UBrowser.UBrowserSubsetFact,SupersetTag=UBrowserAll,GameType=LastManStanding,bCompatibleServersOnly=True
;Content added goes bellow
[UBrowserMH]
ListFactories[0]=UBrowser.UBrowserSubsetFact,SupersetTag=UBrowserAll,GameType=MonsterHunt,bCompatibleServersOnly=True
[UBrowserMHA]
ListFactories[0]=UBrowser.UBrowserSubsetFact,SupersetTag=UBrowserAll,GameType=MonsterHuntArena,bCompatibleServersOnly=True
[UBrowserCOOP]
ListFactories[0]=UBrowser.UBrowserSubsetFact,SupersetTag=UBrowserAll,GameType=coopgame2,bCompatibleServersOnly=True
[UBrowserTMH]
ListFactories[0]=UBrowser.UBrowserSubsetFact,SupersetTag=UBrowserAll,GameType=TeamMH,bCompatibleServersOnly=True
[UBrowserSiege]
ListFactories[0]=UBrowser.UBrowserSubsetFact,SupersetTag=UBrowserAll,GameType=SiegeGI,bCompatibleServersOnly=True
[UBrowserSiegeFree]
ListFactories[0]=UBrowser.UBrowserSubsetFact,SupersetTag=UBrowserAll,GameType=FreeSiegeGI,bCompatibleServersOnly=True
[UBrowserBurgerCTF]
ListFactories[0]=UBrowser.UBrowserSubsetFact,SupersetTag=UBrowserAll,GameType=BurgerCTFGame,bCompatibleServersOnly=True
;End of content added
[UBrowserAll]
ListFactories[0]=UBrowser.UBrowserGSpyFact,MasterServerAddress=gsm.qtracker.com,MasterServerTCPPort=28900,Region=0,GameName=ut
ListFactories[1]=UBrowser.UBrowserGSpyFact,MasterServerAddress=unreal.epicgames.com,MasterServerTCPPort=28900,Region=0,GameName=ut
ListFactories[2]=UBrowser.UBrowserGSpyFact,MasterServerAddress=master.333networks.com,MasterServerTCPPort=28900,Region=0,GameName=ut
....
bFallbackFactories=False
...
[attachment=0]New_TABS.png[/attachment]
That's all...
When UT has finished loading list, will sort them based on these types.
Hint: If target server with a custom stuff blocks you with some firewall because you have been a "cool dude" then you cannot see it, it will be invisible as defaults.
Edit: Added BurgerCTFGame at request.