Grimward — Tower Defense

Content rating
Everyone
10+
Downloads
Content rating
Everyone
Mild Fantasy Violence
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About this game

Tower defense, the way it should be: no ads. No tracking. No always-online.

Grimward is a sci-fi tower defense I (Andre, a solo developer from Switzerland) built over months in my spare time. A hobby project, not a free-to-play skinner box. You pay once, you get the whole game.

🛡️ PRIVACY-FIRST — THE HONEST DEAL

- No ads. Ever. No pop-ups, no "watch a video for 30 gold" mechanics.
- No tracking. No analytics, no Firebase, no ad SDKs, no telemetry.
- No internet access. The app doesn't even request the INTERNET permission — check it yourself in the system permission manager.
- A single permission: VIBRATE for haptic feedback. Can be disabled in Settings.
- No user accounts. No cloud saves from my side. Your progress lives locally on your device.

⚔️ DEPTH OVER FILLER

6 towers × 3 upgrade levels × 2 end-spec paths = 36 unique tower builds. Plasma-Inferno, Tesla Ion-Lance, Railgun Crit-Sniper, Cluster-Mortar, Disruptor-EMP, Reactor-Strike — each spec choice changes your loadout decision tree. No single build dominates; every map asks for a different setup.

👹 MULTI-STAGE BOSS WITH PHASE-2 TRIGGER

At 50 % HP, every boss flips into Phase 2: pulsing aura, new add-spawners, a new threat layer. The Wave-20 final boss is an 80-second climax fight with a red energy shield phase (CC-immune until the shield breaks) and adds spawning right at the path start. Not a DPS check — actual phase management.

🗺️ CONTENT

- 5 campaign maps × 20 waves — City Ruins, Desert Highway, Arctic Station, Swamp March, Industrial Yard
- 3 endless modes — procedurally generated, fully deterministic (no RNG luck, same setup = same wave)
- 24 cosmetic achievements with progress tracking, 3 of them hidden
- 4 music themes — Default, Industrial, Synthwave, Bio-Hazard — unlock via achievements
- Tower-Mastery system — lifetime kills per tower kind unlock +2 / +5 / +8 % permanent damage bonus
- Tower construction phase — placed towers take 3 seconds to build (cancel anytime, 100 % refund)

🎧 AUDIO + VISUAL POLISH

OGG-Vorbis music with dynamic boss crossfade (main music fades to 0 %, boss-pulse layer fades in). Combat-juice pack: screen shake on crits and boss hits, coin float on kill, defeat slow-mo, boss-death spectacle with shockwave rings. Every gameplay second feels reactive.

🌍 FULLY BILINGUAL

German and English, switchable from the main menu. Both languages hand-maintained 1:1 — no "AI-translated filler German".

💰 FAIR PRICING

One-time purchase. No IAPs. No pay-to-win towers. No "lives / energy" mechanic. You buy, you play, done.

📱 SYSTEM

Android 7.0+ (API 24). ~50 MB download. Smooth (60 fps) on older mid-range devices — tested on Samsung Galaxy A-series.

———

If the free-to-play wild-west is getting on your nerves and you just want a game that works like a game — give Grimward a shot.

Bug reports and feature requests welcome — the app has a built-in crash-share button (Settings → Advanced) that drops the log into Android's standard share sheet. Send it my way via mail or messenger, I read everything.

— Andre, solo indie from Switzerland
Updated on
Jul 12, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
No data collected
Learn more about how developers declare collection

What’s new

Balance update for EMP towers:

- Enemies now gain brief stun immunity after each stun — waves can no longer be locked in place permanently
- Disruptor (Tier 3): stun duration reduced from 1.0 to 0.8 seconds
- Slow effects (e.g. Reactor Strike) remain unchanged

EMP towers still disrupt the enemy flow noticeably, but a complete permanent standstill is no longer possible. Happy defending!