Sundae Siege
Tower defence · Switch & PC
Game Development Studio · Fitzrovia, London
We build worlds worth getting lost in.
TitanMysticRealm is a boutique London studio shipping original titles, live-ops multiplayer, and buttery cross-platform ports — from first whiteboard sketch to launch-day servers.
42
Titles shipped
11 yrs
Making games
6
Platforms supported
A note from the founder
Serious engineering, sprinkled with joy.
I started TitanMysticRealm above a coffee roaster on Hanway Street in 2015, convinced that small teams could ship the kind of tactile, colourful games the big studios had stopped making. Eleven years later we are still here, still stubborn, still shipping.
We keep the studio deliberately small — fourteen designers, engineers, and artists who all touch the build. No middle layers, no ticket-tennis. You talk to the people making your game. That is the whole promise.
— Marcus Thorne, Founder & Creative Director
Playable in week one
Every engagement produces a hands-on vertical slice before the first invoice clears.
Ship, then support
We stay on for live-ops, patch cadences, and seasonal content — launch is the midpoint, not the finish line.
Own your IP
Source, art, and assets are yours in full. We build it, you keep it, forever.
Selected worlds
A scoop of what we have shipped.
Scroll sideways through recent releases and live prototypes from the studio floor.
Neon Fathoms
Underwater roguelike · PC
Marmalade Skies
Cosy co-op sim · Mobile
Cobalt Circuit
Racing · PS5 & Xbox
How we compare
Pick the partnership that fits your build.
Three ways to work with the studio, side by side.
| What you get | Prototype Sprint | Full Production★ | Live-Ops Retainer |
|---|---|---|---|
| Dedicated team size | 3 people | 8–14 people | 4 people |
| Playable vertical slice | Included | Included | Not included |
| Full production & QA | Not included | Included | Not included |
| Multiplayer netcode | Optional | Included | Included |
| Console certification | Not included | Included | Ongoing |
| Post-launch content | Not included | 3 months | Ongoing |
| Typical timeline | 4–6 weeks | 6–14 months | Monthly rolling |
What partners say
Reviews from the people we ship with.
4.8
Average from 63 project partners
5
84%
4
11%
3
3%
2
1%
1
1%
"They turned a rough pitch deck into a playable slice in five weeks. Our publisher greenlit the full game off that build alone."
Priya R. · Manchester, UK · March 2026
"The netcode team rebuilt our multiplayer from scratch and our crash rate dropped by 90%. Genuinely the calmest launch we have had."
Tomasz K. · Kraków, PL · January 2026
"Live-ops retainer has kept our season content shipping like clockwork. Players noticed the moment TitanMysticRealm took over."
Hannah B. · Brighton, UK · November 2025
Simple, honest pricing
Choose your scoop size.
Prices in GBP. Switch between monthly retainers and fixed project quotes.
Prototype Sprint
A focused three-person squad that turns your idea into a playable slice.
£9,500/mo
- 3-person dedicated squad
- Playable vertical slice
- Art & audio direction
- Weekly build drops
Most popular
Full Production
End-to-end development from pre-production through console certification.
£38,000/mo
- 8–14 person team
- Full production & QA
- Multiplayer netcode
- Console cert handled
- 3 months post-launch support
Live-Ops Retainer
Keep your shipped game healthy with seasonal content and patch cadences.
£16,500/mo
- 4-person live team
- Seasonal content pipeline
- 24/7 server monitoring
- Analytics & balancing
Let's make something
Tell us about your game.
Drop us a line and we will get back within one working day. Studio visits welcome — we are two minutes from Tottenham Court Road.
Call the studio
Visit us
27 Hanway Street, Fitzrovia, London W1T 1UH
Email us
Studio hours
Mon–Fri, 9:30am–6:30pm GMT