Dublin’s Compact Card Room on Montague Street
Colossus Casino Club operated for more than thirty years at 5 Montague Street, Dublin 2, just off Camden Street in the middle of Dublin’s late-night stretch. Most business directories quote the phone number as +353 1 478 5858, and colossus.ie is listed as the official website. It ran as a private members’ casino, which at the time was the normal way Irish casino-style venues were set up.
The gaming area was small by casino standards. Around 14 tables covered blackjack, roulette, several poker variants and Brit Brag - a traditional pub card game common in Britain and Ireland. There were no slot machines and no electronic terminals on the floor. It was all tables and cash, more like a neighbourhood card club than a hotel resort casino.
| Detail | Information |
|---|---|
| Address | 5 Montague Street, Dublin 2, Ireland |
| Phone | +353 1 478 5858 |
| Website | colossus.ie |
| Table count | Approximately 14 |
| Minimum age | 18 |
| Operating model | Private members’ casino club |
The age limit was 18, the same rule that applied across other Irish casino clubs of that period. Getting in meant signing in at the door or completing a short registration, in line with the members’ club setup.
Games and the Atmosphere on the Floor
Across several sources, betting limits at Colossus are described as modest rather than aimed at high rollers. That was deliberate. Colossus did not try to mirror the Sporting Emporium or chase visitors on city breaks. It functioned mainly as a locals’ room - compact, open late, with a Victorian-style interior that felt different from the more polished clubs around St Stephen’s Green.
At busy times, often running into the small hours, a 14-table room could feel crowded and active. There is no reliable record of the club offering live dealer streams, any digital extension of the tables, or an online casino linked to the premises while it was trading. Everything points to a strictly land-based, cash-only operation.
Brit Brag deserves a brief call-out. It is an old card game tied closely to British and Irish pub culture, and its inclusion at Colossus caught the mood of the place. Local, low-key, not trying to look like a Las Vegas pit.
Opening Hours and the Montague Street Location
Different information sources list different opening times. One set of directory entries reports hours from 09:00 to 06:00 every day. Casino-focused listings mention an evening-to-morning schedule, around 8:30 PM to 8 AM. The mismatch most likely reflects different phases in the casino’s history or sloppy data entry, rather than two completely different schedules running together.
The choice of location fitted the late-night model. Camden Street, close by, is one of Dublin’s busiest roads for pubs, bars and places to eat. Colossus slotted naturally into that nightlife pattern as a final stop for local players heading home. At least one mapping service flagged the site as not wheelchair accessible, which is consistent with constraints that come with older city-centre buildings.
A small practical reminder for anyone who still checks venue data in multiple directories: opening hours often do not match. It is safer to use published contact details - a phone number or official site - to confirm, instead of relying on just one listing.
Corporate History and the Closure Question
Behind the club stood Colossus Casino Club Limited, registered at the same Montague Street address. Irish company data from Vision-Net records the company as dissolved, with a formal dissolution date of 2 June 2020.
At the same time, at least one casino review site, IrishCasinoTour, places the actual closure of the physical room around 2023 and describes Colossus as an iconic Dublin venue that has since shut. The difference between the 2020 corporate end date and the 2023 narrative suggests one of two broad possibilities: the club may have continued to operate in some fashion after the legal entity was wound up, or the 2023 date is approximate rather than precise. Available public information does not confirm either scenario with absolute certainty.
Various directories - including CasinoCity, CasinosAvenue and Golden Pages - carried Colossus listings for some time after the company dissolved, without clearly stating that the venue had closed. Those entries are best treated as out of date now.
| Event | Date or Status |
|---|---|
| Established | Over 30 years before closure, exact year unknown |
| Operating company | Colossus Casino Club Limited |
| Company dissolution | 2 June 2020 (Vision-Net) |
| Venue closure narrative | 2023, approximate (IrishCasinoTour) |
| Current status | Closed, not confirmed active in 2026 |












